All I have to say is this is one amazing weapon! Shot the first 100 rounds through my Shield 40 using WWB 165 Grain. I shot at 10 yards. I was outside on our property. I had 0 magazine drops with the flush 6 round mag, but did have 3 with the extended 7 round mag. I honestly believe this was no fault of the gun and was 100% MY FAULT! I have what I would consider large hands, not fat hands, but long fingers. I noticed that my grip was changing somewhat with the extended mag since I could fit more of my hand on the grip and my thumb was hitting the mag release. Each time it dropped the mag, I stopped and check hand position. My thumb was on the button each time. I'm going to shoot it alot more before I declare it has a mag drop problem. The other thing that was note worthy is that this thing seriously flings my casings. I found one almost 15 feet behind me. I always try to find the casings when I am done shooting since I shoot on grass that is mowed. They were all within about a 5' radius, but much farther to my 4-5 o'clock position than my 40FS. It handled great, much easier to point and shoot than I expected. Also, I was expecting there to be some fumbling with the controls on the smaller platform, but what adjustments I had to make were minimal. I will definitely add a Talon grip soon though. I could see the thinner grip being a problem with wet and/or sweaty hands. Just for reference, the "target" was a catalog apprx 11"x13" I happened to have in my truck since I forgot my targets at home. Overall, I am extremely pleased with the Shield 40. I think it has gotten somewhat of a bad reputation, but I am thrilled with mine. If it does drop the mag in the future I will try the mag bump and see what happens. Hope this review helps. Now onto my research for an IWB holster! 
PS...Am I still the only person to receive a blue plastic case from S&W with the foam cut for a Shield? It was sent to me at no charge from S&W.

PS...Am I still the only person to receive a blue plastic case from S&W with the foam cut for a Shield? It was sent to me at no charge from S&W.