Put a kit in my Gen 2 17. Seems to be not going cycling . Drop the slide and it either fires or shows a firing mark off centered on the brass Doesnt cycle Does not eject. Have tried a 10,11,13,15 recoil spring and it still doesnt cycle if it fires the first round. Would a different striker spring be the fix? Or is there some thing else I need to check or replace. I can put the 9mm back and it fires and cycles.