Leave the files in the drawer........ put factory springs in it and if that don't do it take it to SPDguns!!Hair trigger....someone told me it had one many years ago. A cop apparently "tuned it up" to suit him and his needs. It isn't unsafe just not original. I've always thought about tinkering with it and somehow getting it to where it has a normal trigger pull. If worse comes to worse, I'll take it partially apart and grease the mechanism. I am not a gun expert by any means and what may be a hair trigger to me may be perfectly acceptable to someone else. I'll probably clean it a bit and grease it.