I recently picked up the M&P Shield in 9mm, and love it. Also started loading and shooting bayou bullets as love them as well. The pistol is reliable and the bullts are accurate with no leading and little smoke.
124 gr bayou bullet
Starline case
CCI SP primer
Power pistol powder (going to try longshot and bluedot when I can find it)
Anyway I got in touch with apex tactical to find out if their Forward Set Sear and Trigger kit will work in the Shield. It will not but was told they maybe working on it with R&D. Apparently they have gotten a number of requests for this, so if there is anyone out there that would be interested in this product from them please contact themand let them know!