I have the same gun, UTC, 1.5" guarantee, no FCS. The best part about the gun? The 1,000 round break-in period, where you get to shoot 1,000 through your new piece.
I agree with others (and you, apparently), it is the very best set up for a "combat" 1911. Hardcore performance. A hard, utilitarian beauty.
On the advice of others, I junked the LB mags and bought 6 new CMC mags. They have been excellent.
I'm pretty friendly with the ROs at my favorite range, and at times they'll bring out their toys to let me shoot. One of them let me shoot his LB Commander-sized 1911, and all 8 rounds were touching. From that moment I was shopping for a LB.
It's funny, most people think they are just an average shot, and don't attribute any inaccuracy to their gun. But when I let my buddies shoot this gun, their groups shrink from 6 inches to 2. It's amazing.