Just got a 2nd gen G19. I completely disassembled and cleaned the gun and buffed up some of the internals. Trigger is stock I believe. Here's my dilemma: when I pull the trigger, after the initial take up I hit the "wall". In other words, I now have to pull through against a heavier trigger. How can I get it to where the trigger pulls the same all the way through? Like a revolver type trigger where it's the same pulling strength all the way through?