I can't put anything on the body of the guitar, just floating, although not floating, because my under thumb part is muting the bass strings, and when I play the bass strings my fist of the other fingers is kind of lightly resting on the g b e. I can pick fast, but if you can't, it's normally the sync is messed up, you need to work on that, normally, you're left hand will be quicker than you can pick, but if you tremolo pick, it should be faster than your left hand legato. the speed barrier is crossing the strings with ace control, keeping tiny pick movents, and holding the pick solid.