You can just leave the bushing out of the Redding FL S die to use it as a body die. The shoulder pulling is moslty caused by the expander. If you get all your case necks uniform and pick the bushing that gets the inside just right with no expander in place, that should, ideally, prevent the problem from occurring. As a matter of practice, though, I think some presses and shell holders can pull the case off a little before the neck fully clears the bushing.
I've become sold on the Lee Collet Die as a way to avoid the whole problem and avoid getting donuts in the neck.
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