I have had my usp expert in 40 for seven years now. It has some sentimental attachment. This last year I started shooting uspsa. The Gun is great when it doesn't have a problem. Just today I shot 7 stages and had my slide fail to go in to battery five times ( this happens with all types of ammo and I clean my mags twice durring a match). That malfunction is costing me valuable time. What can I do to fix it? Heftier spring maybe? And I would like to adjust my triggers reset as it's longer than I would like. The malfunctions are the bigger peoblem, and if it keeps happening, I'm going to have to sell the gun for something that doesn't fail so often. I love my expert and I would hate to part with it. Sorry for the spelling.