I wouldn't mess with slide to frame, mine was pretty loose before I ceramic coated it then had to lap it in. Accuracy was fine with it loose, and it ran great(still does). Atlas makes a nice high grip shielded single side safety, might work good with big hands. They also carry the X-line Vario triggers, I just put one in mine and fitting was easy, and adjustable in every way. I ground the he'll out of the stock magwell for my fat palm to feel comfortable, it worked for a while, just got the Hayes which needed some love to fit smooth and some grip tape cuz it is slick and wasn't helping my grip, feels great in my hand though. I had some light strikes when I tried a lighter main spring and that was before I had a Dawson extended FP, so watch for that.