diff --git a/ruby/lib/jam_ruby/models/active_music_session.rb b/ruby/lib/jam_ruby/models/active_music_session.rb
index edc98fd9f..b3640ec75 100644
--- a/ruby/lib/jam_ruby/models/active_music_session.rb
+++ b/ruby/lib/jam_ruby/models/active_music_session.rb
@@ -450,7 +450,7 @@ module JamRuby
       [music_sessions, user_scores]
     end
 
-    def self.participant_create user, music_session_id, client_id, as_musician, tracks
+    def self.participant_create user, music_session_id, client_id, as_musician, tracks, audio_latency
       music_session = MusicSession.find(music_session_id)
 
       if music_session.active_music_session
@@ -462,7 +462,7 @@ module JamRuby
 
           active_music_session.with_lock do # VRFS-1297
             active_music_session.tick_track_changes
-            connection = ConnectionManager.new.join_music_session(user, client_id, active_music_session, as_musician, tracks, 10)
+            connection = ConnectionManager.new.join_music_session(user, client_id, active_music_session, as_musician, tracks, audio_latency)
 
             if connection.errors.any?
               # rollback the transaction to make sure nothing is disturbed in the database
@@ -519,7 +519,7 @@ module JamRuby
 
               # auto-join this user into the newly created session
               as_musician = true
-              connection = ConnectionManager.new.join_music_session(user, client_id, active_music_session, as_musician, tracks, 10)
+              connection = ConnectionManager.new.join_music_session(user, client_id, active_music_session, as_musician, tracks, audio_latency)
 
               unless connection.errors.any?
                 user.update_progression_field(:first_music_session_at)
diff --git a/ruby/lib/jam_ruby/models/email_batch_scheduled_sessions.rb b/ruby/lib/jam_ruby/models/email_batch_scheduled_sessions.rb
index 50b542b89..9bc6a742c 100644
--- a/ruby/lib/jam_ruby/models/email_batch_scheduled_sessions.rb
+++ b/ruby/lib/jam_ruby/models/email_batch_scheduled_sessions.rb
@@ -140,8 +140,7 @@ INNER JOIN users ON users.id = msess.user_id
 INNER JOIN rsvp_slots AS rs ON rs.music_session_id = msess.id
 LEFT JOIN rsvp_requests_rsvp_slots AS rrrs ON rrrs.rsvp_slot_id = rs.id
 WHERE
-    musician_access = 't' AND
-    approval_required = 'f' AND
+    open_rsvps = TRUE AND
     users.last_jam_locidispid IS NOT NULL AND
     msess.created_at > '#{earliest_session_create_time}' AND
     msess.created_at < '#{latest_session_create_time}' AND
diff --git a/ruby/lib/jam_ruby/models/music_session.rb b/ruby/lib/jam_ruby/models/music_session.rb
index 290fd93f4..35a5a7892 100644
--- a/ruby/lib/jam_ruby/models/music_session.rb
+++ b/ruby/lib/jam_ruby/models/music_session.rb
@@ -10,7 +10,7 @@ module JamRuby
 
     RECURRING_MODES = [NO_RECURRING, RECURRING_WEEKLY]
 
-    attr_accessor :legal_terms, :language_description, :access_description
+    attr_accessor :legal_terms, :language_description, :access_description, :scheduling_info_changed
 
     attr_accessor :approved_rsvps, :open_slots, :pending_invitations
 
@@ -58,11 +58,17 @@ module JamRuby
     before_create :generate_share_token
     before_create :add_to_feed
     #before_save   :update_scheduled_start
+    before_save :check_scheduling_info_changed
 
     SHARE_TOKEN_LENGTH = 8
 
     SEPARATOR = '|'
 
+    def check_scheduling_info_changed
+      @scheduling_info_changed = scheduled_start_changed?
+      true
+    end
+
     def add_to_feed
       feed = Feed.new
       feed.music_session = self
diff --git a/ruby/spec/jam_ruby/models/email_batch_spec_scheduled_session.rb b/ruby/spec/jam_ruby/models/email_batch_spec_scheduled_session.rb
index b632234bc..c23eca414 100644
--- a/ruby/spec/jam_ruby/models/email_batch_spec_scheduled_session.rb
+++ b/ruby/spec/jam_ruby/models/email_batch_spec_scheduled_session.rb
@@ -89,6 +89,16 @@ describe EmailBatchScheduledSessions do
       expect(UserMailer.deliveries.length).to eq(2)
     end
 
+    it "won't find an open_rsvps=false session" do
+      session1.open_rsvps = false
+      session1.save!
+      session2.open_rsvps = false
+      session2.save!
+
+      obj = scheduled_batch.fetch_recipients
+      expect(obj.count).to eq(0)
+    end
+
     it 'handles large batches' do
       creators = []
       8.downto(1) do |nn|
diff --git a/ruby/spec/jam_ruby/models/music_session_spec.rb b/ruby/spec/jam_ruby/models/music_session_spec.rb
index ad4cc67de..f7b9f2a8f 100644
--- a/ruby/spec/jam_ruby/models/music_session_spec.rb
+++ b/ruby/spec/jam_ruby/models/music_session_spec.rb
@@ -779,5 +779,20 @@ describe MusicSession do
       end
     end
   end
+
+  describe "scheduled session rescheduled logic" do
+
+    it "detect change to scheduling info" do
+
+      music_session1.description = "Hey!"
+      music_session1.save!
+      music_session1.scheduling_info_changed.should be_false
+
+      music_session1.scheduled_start = Time.now - 1.days
+      music_session1.save!
+      music_session1.scheduling_info_changed.should be_true
+
+    end
+  end
 end
 
diff --git a/web/app/assets/javascripts/jam_rest.js b/web/app/assets/javascripts/jam_rest.js
index 36cdcffc7..619ea3036 100644
--- a/web/app/assets/javascripts/jam_rest.js
+++ b/web/app/assets/javascripts/jam_rest.js
@@ -883,11 +883,7 @@
                 dataType: "json",
                 contentType: 'application/json',
                 url: "/api/users/progression/certified_gear",
-                processData: false,
-                data: JSON.stringify({
-                    success: options.success,
-                    reason: options.reason
-                })
+                data: JSON.stringify(options)
             });
         }
 
@@ -1184,17 +1180,6 @@
           });
         }
 
-        function updateAudioLatency(options) {
-          var id = getId(options);
-          return $.ajax({
-            type: "POST",
-            url: '/api/users/' + id + '/audio_latency',
-            dataType: "json",
-            contentType: 'application/json',
-            data: options,
-          });
-        }
-
         function initialize()  {
             return self;
         }
@@ -1298,7 +1283,6 @@
         this.getChatMessages = getChatMessages;
         this.createDiagnostic = createDiagnostic;
         this.getLatencyTester = getLatencyTester;
-        this.updateAudioLatency = updateAudioLatency;
 
         return this;
     };
diff --git a/web/app/assets/javascripts/wizard/gear_test.js b/web/app/assets/javascripts/wizard/gear_test.js
index 032a427f2..c6c897daf 100644
--- a/web/app/assets/javascripts/wizard/gear_test.js
+++ b/web/app/assets/javascripts/wizard/gear_test.js
@@ -433,7 +433,7 @@
 
         context.JK.GA.trackAudioTestData(uniqueDeviceName(), context.JK.GA.AudioTestDataReasons.pass, latencyScore);
 
-        rest.userCertifiedGear({success: true, client_id: app.clientId, audio_latency: getLatencyScore()});
+        rest.userCertifiedGear({success: true, client_id: app.clientId, audio_latency: getLatencyScore().latency});
       }
 
       function onGearTestFail(e, data) {
diff --git a/web/app/assets/javascripts/wizard/gear_utils.js b/web/app/assets/javascripts/wizard/gear_utils.js
index 6eb7aa2eb..13e182582 100644
--- a/web/app/assets/javascripts/wizard/gear_utils.js
+++ b/web/app/assets/javascripts/wizard/gear_utils.js
@@ -269,14 +269,6 @@
     return result;
   }
 
-  gearUtils.updateAudioLatency = function(app) {
-    var latency = jamClient.FTUEGetExpectedLatency().latency;
-    return rest.updateAudioLatency({client_id: app.clientId, audio_latency: latency})
-      .fail(function(jqXHR) {
-        app.notifyServerError(jqXHR, "Unable to sync audio latency")
-      });
-  }
-
   // if the user has a good user network score, immediately returns with a resolved deferred object.
   // if not, the user will have the network test dialog prompted... once it's closed, then you'll be told reject() if score is still bad, or resolve() if now good
   gearUtils.guardAgainstBadNetworkScore = function(app) {
diff --git a/web/app/controllers/api_music_sessions_controller.rb b/web/app/controllers/api_music_sessions_controller.rb
index ca84595f0..eae4ec2fb 100644
--- a/web/app/controllers/api_music_sessions_controller.rb
+++ b/web/app/controllers/api_music_sessions_controller.rb
@@ -224,7 +224,8 @@ class ApiMusicSessionsController < ApiController
           response.status = :unprocessable_entity
           respond_with @music_session
         else
-          Notification.send_scheduled_session_rescheduled(@music_session)
+          Notification.send_scheduled_session_rescheduled(@music_session) if @music_session.scheduling_info_changed
+
           respond_with @music_session, responder: ApiResponder, :location => api_session_history_detail_url(@music_session)
         end
       else
@@ -287,7 +288,8 @@ class ApiMusicSessionsController < ApiController
           params[:id],
           params[:client_id],
           params[:as_musician],
-          params[:tracks]
+          params[:tracks],
+          params[:audio_latency]
       )
 
       if @connection.errors.any?
diff --git a/web/app/controllers/api_scoring_controller.rb b/web/app/controllers/api_scoring_controller.rb
index 34420e355..a72f5e579 100644
--- a/web/app/controllers/api_scoring_controller.rb
+++ b/web/app/controllers/api_scoring_controller.rb
@@ -24,6 +24,9 @@ class ApiScoringController < ApiController
 
     conn = Connection.where(client_id: clientid, user_id: current_user.id).first
     if conn.nil? then render :json => {message: 'session not found'}, :status => 404; return end
+
+    if conn.locidispid.nil? then render :json => {message: 'no locidispid for connection'}, :status => 404; return end
+
     # if !current_user.id.eql?(conn.user.id) then render :json => {message: 'session not owned by user'}, :status => 403; return end
 
     result_client_ids = JamRuby::GetWork.get_work_list(conn.locidispid, conn.addr)
diff --git a/web/app/controllers/api_users_controller.rb b/web/app/controllers/api_users_controller.rb
index 27f5f268d..30d507bc7 100644
--- a/web/app/controllers/api_users_controller.rb
+++ b/web/app/controllers/api_users_controller.rb
@@ -534,7 +534,7 @@ class ApiUsersController < ApiController
 
       if !@user.errors.any?
         # update audio gear latency information
-        @user.update_audio_latency(connection, params[:audio_latency])
+        @user.update_audio_latency(connection, params[:audio_latency]) if params[:audio_latency]
       end
     else
       @user.failed_qualification(params[:reason])
diff --git a/web/spec/features/profile_history_spec.rb b/web/spec/features/profile_history_spec.rb
index ef500f420..551b1dc22 100644
--- a/web/spec/features/profile_history_spec.rb
+++ b/web/spec/features/profile_history_spec.rb
@@ -8,6 +8,7 @@ describe "Profile History", :js => true, :type => :feature, :capybara_feature =>
 
   before do
     MusicSession.delete_all
+    ActiveMusicSession.delete_all
     Recording.delete_all
     set_login_cookie user
     stub_const("APP_CONFIG", web_config)
diff --git a/web/spec/support/app_config.rb b/web/spec/support/app_config.rb
index 166145ae4..762168dde 100644
--- a/web/spec/support/app_config.rb
+++ b/web/spec/support/app_config.rb
@@ -54,6 +54,10 @@ def web_config
     def max_track_part_upload_failures
       3
     end
+
+    def icecast_hardcoded_source_password
+      'blueberryjam'
+    end
   end
   klass.new
 end