Hey all, I took out the 686+ 4" yesterday and fired about 70 .38 Spl and 14 .357 rounds through it. Groups were working out very well for me, then I had a wonky trigger pull issue. For info; the gun is stock. There has been nothing done to the gun except bead blasting, and that was done 13-14 years ago. The internals were cleaned after the finish was done and I have fired it hundreds of times, so there isn't any grit inside the action. It does have the lock, but I have never used it. As I fired the final two .38 rounds all was fine, then he gun's trigger would BARELY pull. I literally had to take my off hand and push the top of the cylinder to get the cylinder to turn, then it fired. I fired two more rounds, then it did it again. Ultimately I set it aside and shot something else. When I got home I put the u-tube clips on about the internals of the modern S&W, and then removed the sideplate. I noticed the sideplate screws were in their spots but neither one was tight at all, but ithe sideplate did look to be fitted against the frame tightly. When I got the sideplate off the hammer block seemed to be out of place (It could have ridden out from it's position when I lifted the sideplate, I don't know.) I wiped down what I could, visually checked the function compared to the gunsmith videos, and all looked good. I then reinstalled the hammer block to it's correct spot after a light lube. I tightened the sideplate screws and reinstalled the grip and then pulled the trigger DA about 50 times. I had no further goofy trigger pulls. My question is; could the looseness of the sideplate screws allow the middle of the sideplate to flex enough to allow the hammer block to fall out of place and cause this issue, or do you think is it something else that is going to pop up again when I am firing away with it? Thanks! Stay safe!