I just bought the pistol the other day and I'm plannin' on doing some upgrading on it...springs...trigger job...different firing pin...and night sights...I need some help as far as the springs. I know you can't go too light of a recoil spring without going lighter on the firing pin spring. I'm gonna get a tungsten guide rod from LWD. I just need help with what pound springs to go with and what trigger upgrades to do...I don't like the take up and overtravel. Any help is appreciated.