After basically ignoring Glock for 30 years, I bought a G19/4 in October to see what the fuss was all about. I like a lot about it, but I really don't like the trigger. Basically, if I can improve the trigger without impacting its longevity, I'll keep it, but I have no desire to fire another round through it with the current trigger setup. Right now, it's OEM (except with an OEM 3.5 connector) with about a thousand dry-firings and 200 live rounds to smooth it. I saw no change to feel or measured trigger pull (it's about 6-1/4 pounds) from the change from the dot connector to the minus connector. The weight of pull isn't an issue - it's the "wall" I'd like to minimize. I read Todd's blog about the long-term Gen 4 test and don't want aftermarket parts in it.
Will something like Charlie Vanek's OEM kits: http://www.vanekcustom.com/8.html get me the break I want? Does "tuning" OEM parts make them less reliable somehow? This will be for concealed carry.
Since "I don't know what I don't know," please feel free to wander.