Hello all.. Recently sold my Glock 27 (which was paired with my Glock 22 but I then moved to Glock 17) and replaced it with a Glock 19 for CCW. Since I have the 19 as my personal weapon. I had a trigger job done to it... Now to make a really long story over a long time short. I had to go back to the smith several times. He lowered the trigger to 2.5lbs and it shot like a dream. However, my biggest concern was it was unreliable. It did this the first time I before I took it back to him.. The trigger would not work. It would go back all the way and come back forward. Then out of nowhere work again. Took it back he did something, then...second thing. It would shoot and the trigger would stay back... So..Back to factory it went. Of course back to 100% reliability. Now, he says it's all the 4th Gen's fault. I think it's a cop out. What do you guys think?