Getting the trigger back in with its return spring was a treat...A loop of heavy monofilament hooked over the tip of the spring that points up and a slave pin through the trigger pivot worked for me, but I don't think I'd go there again. In the case of my Undercover, I've never seen so many razor sharp corners...
I used a Trapper spring kit on my Undercover, though I don't know if they're still in business. Wolf springs may carry some lighter return springs. I wouldn't go much lighter on the hammer spring.
