Fun gun to shoot, but I'm having difficulty reassembling after field stripping and cleaning. The recoil spring retainer (recoil spring plug in Colt speak) appears to be protruding a fraction of an inch too high to let my bushing wrench turn the bushing to its proper position to hold the retainer in place. This is my first experience with a Briley spherical bushing, but I don't think the bushing is the issue. I notice the slide moves back a tiny bit when I push the wrench down. Any tips would be appreciated.