I ask you, when sizing new brass do you still feel there is a need to lube the inside of the neck? It has been my experience that the more you shoot and reload brass the more work hardened it becomes especially the case neck. Yes, it can pull the shoulder foreward if there is too much resistance however this is normally due to the build up of powder residue not being cleaned out. Also, from the brass being work hardened which annealing will take care of in most cases. You can also take a piece of emery cloth and and take down the sizer button a little to over come the resistance. Using a carbide sizer button will eleminate the need to lube or ordering a undersized sizer button will help as well. Lubing the case neck to me is more work than it's worth and can be avoided.