I've been trying to apply the floating thumb for the past month or so, but I'm having trouble descending on the strings. (In fact, descending has always been my problem). I've always had a problem with plucking the strings too hard when I used to anchor on the pickup, partially because I like the aggressive tone I get. Even though I am hitting the strings softer, I am still hooking my fingers in too much. Are there any exercises to remedy this?