I'm running PA v 2.0.9-550-play on my Nexus10 running with the stock ROM with Android 4.4.2. Whenever switching applications PA stutters on playback over bluetooth. It'll generally play fine except when switching songs. Other players on the same tablet don't have issues, and it doesn't seem to matter what else is running.
I have this issue as well. I'm running Android 4.1.2 on a Motorla Razor Maxx HD (stock). I'm using PA Version 2.0.9-build 530 Full Version. When connecting to SYNC on my Fusion it just starts playing. I have likewise disabled the option for automatic playback on connect. It will frequently even over-ride other players including pandora.