I have never used a Lee neck sizing die, and no longer buy or use Lee dies at all. Having said that, I don't see the need to adjust any die so that it is "whacking" my shell holder with every pull of the lever. In my opinion the die should be adjusted so that the case is deprimed and the neck is fully sized, that is with a neck size only die. When setting the depth of the die in the press I put the ram at the top of it's stroke and turn the die in until it touches the shell holder and then back it out about 1/4 turn , then lock the die down with the lock nut. After that is set correctly I run the stem up very high in the die, then place a case in the shell holder and run the ram up and down and see if the neck is making contact with the die and adjust the stem until the entire neck is sized but not the shoulder.