Version 1.1 adds optional (on by default) spell timers for when group members /gsay the trigger phrase.
When enabled, each group member will start a timer with their macro. With the Spell Timer window open ([Show Timers] button in the ACT upper right corner), users can see each group member's cool down time. If everyone is watching the timers window, it should be easy to get the group cast time realigned in cases where someone missed their cast or casted when other members were unable to cast. When all the timers are gone, everyone's spell is ready for recast.
The spell timers can also be used to enhance or replace the audio alert. (The audio alert is disabled by clearing the "Text-to-speech for cast alert" box.)