James - two problems to watch out for with your ultralite that I ran into: If it seems like the hammer is getting tough to pull back, or it gets tough in DA, the hammer spring pin washer can slip out of place, causing the pin to rub. Also the firing pin ring can slip out, causeing both the pin and the spring to be able to pop out right behind the cylinder, why it's an extra piece on this gun, no idea, you can take the pin and spring out from the back, so why from the front?
The first problem I fixed by shoving the washer into place pretty hard. The second I fixed with a tiny bit of JB Weld. I have had no problems since these. There was a few spots rubbing inside the action, which I used some sand paper and steel wool to fix.
I also own a RB, and am a huge fan, no problems with this gun. It's in a .454 Casull and will handle the hottest of loads.