I've put a few thousand rounds through my 4" .45 XD and now i want to change a few things. I've been checking out Springer Precision. I've never done ANY customization to a pistol before, so i wanted to get a few pointers/tips from you guys first. 2 questions 1: Are there any disadvantages to reducing the strength of my recoil spring? I've seen a few that have a 16lb rating. My first thought when i pulled this gun out of the box was, "Man! I get a workout just pulling the slide!" 2: I may be spoiled from my kimber, but i feel the trigger has alot of travel in it. I dont mind the pull weight so much, just the distance. SP has a trigger kit for $130, is it worth it? Could I install it? Thanks guys!!!