This is a little late in this thread to be posting. But I just thought I'd say it's nice to hear you kept the Black Hawk. I dont think I could get rid of any of my guns, ever. Even though a few of them are not exactly smooth operators.
I would like to add, now that your secure in your decision to keep the black hawk... That I love the new Sigmas. They are very accurate, and feel great in the hand... They are easy to aim. And I dont mind the heavy springy trigger. I think of it as a bit of a safety, and with a little practice it becomes quite natural. I've shot mine and another guys, Neither mine nor his has had a single malfunction of any type since we have owned them (neither has gone through more than a few thousand rounds) We have also both shot 2 seperate types of ammo in our guns. from 2 types of FMJ, to hollow points, and led bullets. I'm very impressed with these little guns, they are easy to clean, look and feel great, so far for me, totally reliable. You can get night sights for them, they have a rail for a flashlight, although it's not a standard rail, you would probably need an adapter.
I've shot 3 different glocks... and I prefer the Sigma to a glock, I'd even say as a carry pistol. (although I dont carry.) There are a bunch of other great pistols out there. But for the money, and the fact that it works, and it has alot of other good things going for it. The new Sigma from S&W is well worth the $300 or so they are going for.
Maybe this will help someone