I don't really know what category this would fall under, forgive me. I like to slap, but it's not what I mostly play. I slap to impress friends, family and when I'm in a funky mood I slap. However, I can't seem to get a loud sound from my A-String when I slap it. I don't use the double thumb technique. I tried pumping the mids, pumping the bass, lowering my back pickup (MIM Fender Jazz), using my pedal for gain and more bass, yet I can't get a good sound out of it. I switched strings from my Ernie Ball Slinkies to the stock Fender strings. Same deal, so I went back to the slinkies. Anyone have any suggestions?