Are you using Swim HRM?
someone noticed a bad pool count (25m pool) that show a lot more pool/meters than expected? (e.g. 500m instead of 300m real)? happened twice with fw 9.72b, never happened before. when i pause after warm up, all counting reverse to ok (e.g. show 500m during swim, revert to 300m when stop during pause). will do some test asap with fw 9.73b.