Sorry to hear about all the trouble. I was not having problems before with mine, except for when my wife and daughter shot it. They had stovepiping problems which I think was from limpwristing, but I never had any when I would shoot it. I have been using 115gr. UMC stuff the whole time. I do think that the factory spring is too tight. I was neer a big fan of Glock before this pistol, but the current setup I have now with a Vanek Trigger, the Jager guiderod with the 13lb. spring and lonewolf barrell has turned this into one of my favorite guns.