The only different thing I did was increase the crimp, so I went back to a lighter crimp and the cases have only a very small bulge just above the rim that was always there. they run through the buster with little or no resistance. I don't know if that is feasible or not but it worked for me. the moral of the story is leave everything the way it is if it works, experimenting can lead you in a different direction. I will try to post pictures if I can get a good close up.