A friend asked me to help figure out what was wrong with his SA SS Champion... it jammed, would not feed the last round, and was impossible to slingshot from slide lock. He has owned it since it was new, and has never done anything to it. I shot it, replaced the recoil spring, then today I took it to a fellow who knows about these things...
Turns out the recoil spring was binding. The original spring, and the recent replacement from Wolff, both have a curve in them from kinking. Shooting it a little has put a slight bend in the barrel bushing legs. I've been told the slide may crack as a result.
Bad ju-ju!