The thing about STOP I've noticed is that you don't always get a clean break, but maybe that's just my setup. Stopping a sample (or even a normal track in a Track Deck for that matter) can sound "crunchy" depending on where in the waveform the sound is being stopped... but with MUTE you always get a clean break. So at first I was in the same boat, I wanted the MUTE/STOP button configuration to be swapped... but now I prefer it the way it is. I just mute the bank and quickly Shift + MUTE to stop only as necessary. What I love is that the bank goes right back to active (unmuted) so I can trigger another sample right away without that extra step of making it live again. Now I actually wish the MUTE buttons were the same size as the cell pads because they're quickly becoming an integral part of how I use the controller.