believe it or not guys, Ive found that the Red ones produce more highs and mids, and the Black ones will add a little bass and cut some of the mids out. I have three diff types i use. I use the Red and Black Jazz IIIs and then the 1.14mm Tortex Jazz IIIs, which lie the reds, boost your highs a lot. I use the red ones for doing high speed triplets and quads ala Chimaira/KSE/Divine Heresy, the black ones for all my Drop D stuff, and the tortexs for KoRn/anything that i wantsuper highs in. Maybe im crazy but i constantly bounce between picks. I can pick the fastest with the Reds, but love the tone from the Blacks, lol. Endless cycle
Interesting, I might have to experiment more with the red and black ones and changing between them.