This must be nothing new to most of you guys, but perhaps some novice player improves himself a little. Trick on cleaning out your right hand while slapping is, simple as this: while slapping, mute only the strings you are currently hitting and let others ring freely. This way while slapping&popping muted strings you can hear when the wrong strings are hit and start to ring, this making it easier to fix. Nothing special, just a little thing that improved my technique and what I wished to share. Merry Xmas!