A friend asked me to please put a Powder River drop in trigger kit in his XDm 45. The kit came with a choice of "combat' or "target" springs along with the hardware. Well, of course he wanted the lightest setup so he wants the "target' springs. I told him that was fine except for the lighter striker spring. His gun gets shot a ton,with reloads,and doesn't get meticulously cleaned on a regular basis. I told him that in my opinion he was asking for trouble using that weaker spring. But he wants it anyway so in it goes. Long story short we go to a steel shoot last weekend,where it was very cold,and lo and behold we hear bang,bang,click,slide rack,bang,click,slide rack,etc. You get the picture. I'm gonna be coy. He's gonna have to ask me to change out that spring.That means he will have learned his lesson. By the way that kit really made the XDm trigger nice.