I'm pretty sure the TAP line has trouble expanding after encountering heavy clothing. If you want +P go with a load in the recommended list. I like the standard pressure loads myself. Less blast, less wear on the gun and quicker follow up shots.
Originally Posted By CodeBlueMedic:
Should I bother with a +P round? It's going in a S&W M&P 9mm (full size)
No. Increased flash, report and recoil for a slight increase in velocity that does....what? Go 124 or 147gr standard pressure. The rounds listed by FMJ are all excellent- get golden sabers if the others are unavailable.