Jowzers. When playing slap I've come across the following technical problems: -I usually thumb the E and A string and very occasionally the D string. The one thing that I've found, is that there's a huge volume change when thumbing between the strings. The E is the loudest, the A a bit less and the D is the weakest... Do I need to find a way to strike harder and lose my 'thight' and control? Or might a compressor be an option? -When playing the D and G string, my E and sometimes start vibrating and making noises and stuff. When playing fingerstyle I use the floating thumb to prevent that, but I have never heard of such a technique for slap. Any ideas/suggestions? Thanks for your input, all!