I recently loaded and shot a bunch of loads for USPSA production, using PD 124gr JHP's with WSF, WST & Titegroup. Side by side, there was no considerable difference in accuracy, but the WSF loads' recoil impulse felt the best to me. Then I shot all 3 loads at a match for a couple stages each, and again the WSF was the winner for me. I had previously been shooting 147gr Berry's over 3.5gr Titegroup, but I'll be sticking with the 124's from now on.
GEN 3 20LS/20SF/21SF/30SF/23/34/26
GEN 4 17/19/21/34/35