I've not had any problems with pulling both hammers back and firing the barrels. No doubling so far. I'd pull back both hammers at the range just to make sure there is no worries when you are in the field. If so I'd get some one to look at it.

The triggers on mine are really creepy, so I'll get the locks looked at one day. I'd also like to get a real express sight, and to put about another oz or so in the butt since its so barrel heavy. But then I think is it worth it to put another 400-500 into the gun...