I think you're asking for worn out big end, small end, and damaged race surfaces by not shimming properly. You're letting your junk slide around all over the place and tweak everything up.
It doesn't matter what the shims are, so long as they come out to the right end play float.
And Joe the end float and the binding are the same thing... your crank is binding because you have no float. I'd personally go with a thicker gasket before sanding the inner race seat - that's just me. (edited)