I listened to a couple of funk pieces, and noticed this groovy sounding "flutter" trick. I started wondering how it's done and came to the conclusion it's done by muting the string(s) fith left hand and striking the string with the nailside of index,middle etc. fingers consecutively, but i'm not sure about this at all. So you wouldn't happen to know how to do it? The terms i use here are probably 99,9% inunderstandable, i don't know much english terms.. Hope you can make something out of it.