Hello, sorry for any confusion or offense but I realized my own mistake had prevented me from fitting the mainspring assembly in place and I didn't want to mislead anyone else with the same problem who might've come across the thread. I was attempting to use the original "base" for the spring with the new spring and rod assembly from Numrich. I was trying with the base upside down...d'oh. So, after getting it right side up, it all went together well. But. It didn't solve the light strike problem. I was still getting a couple at least out of every 9 tried in double-action. And one or two in single-action mode as well. I have yet another mainspring assembly on the way from Numrich that has a steel guide part instead of the plastic piece used on the original and the other Numrich replacement. I ordered that because the plastic piece on the replacement is already showing signs of deformation and it has barely been used. If it still isn't right after trying the newest part, I'm not sure what I'll do. I hate to put any more money into the pistol but it is in great condition otherwise. Here's hoping the steel-guided mainspring does the trick!