I haven't been slapping much before, haven't really been into that technique until recently when I decided to build it up a bit. So I learned the song Higher Ground by TRHCP. I finally got the speed and the sound pretty much right through the whole song and I really got into it a lot, playing it quite rough (I guess Flea inspired style but I'm always rough even fingerstyle). Anyways, I haven't even noticed right off, until I stopped playing. My index finger was bleeding. Found some blood on the strings as well. What happened is, I tore the skin a bit, just below my nail on my index finger. It happened because it bangs on the E string when I pop the D string. My thumb is ok, I already developed a callous. I switched to middle finger, tried popping that way, and the same thing happens. Anyone have/had that problem? Now it hurts like a bitch and I can't slap & pop since I'd be hitting raw flesh on the E string.