Just another update on what I've tried. Found a thread for another phone mentioning BT audio stuttering on KK, which was fixed by changing the governor to ondemand. I tried that on my Note 2 to no effect. I also tried disabling WiFi but no change. I did find out, though, that my audio isn't bad just on bluetooth - it's bad on wired headphones, sometimes, too. Hope Lollipop comes soon, or at least a KK patch. Streaming music to my car stereo over BT is one of the top three reasons I own a phone, and right now any time I try it, I hear more stutter than I do music. The phone seems great otherwise, but man, what a big bug this is.