...snip[*]I am very careful putting on the 35mm lens on my second FE body. I can't see any issue with me using the wrong angle or too much or too little force or cramming anything in. It's VERY stiff though when attaching and turning the aperture wheel takes two hands, one to steady the lens body and one to twist the ring. Certainly very disconcerting.[/LIST]
Thanks again for everyone's help. I secretly hope it's an issue with it being Pre-Ai ... can someone explain that to me?
This should have been your first clue. Nothing, absolutely nothing on any camera requires that much force unless something is very very wrong. Whenever something requires that much force to move, STOP and find out why.