Wait...what?
Care to clarify on that?
CGW trs spring didn't last at all in my s2, I've noticed the reset got weaker and weaker after 1000-1500 rounds so I switched it back to stock trs but it works just fine in my Shadow. I'm not sure if it has anything to do with the different trigger travel between s2 and Shadow. Because when I pulled the cgw out of my s2 after 1500 rounds it doesn't look anywhere near the fresh one, lol