I finally got my new Shield 45. I Took it out yesterday and put about 100 rounds of various ammo through it with out any problems. If you were wondering how much velocity you lose with a 3.3 inch barrel. I clocked 2 factory loads over the chronograph.
Federal American Eagle, 230 gr FMJ, 775.63 FPS (10 shot Average)
Federal Tactical HST, 230 gr HST HP, 818.86 FPS (10 shot average)