Again, not much cost added, unless you are making your own lubes from free matl. There is a small amount of add'l time to coat but for the better result, worth the small amount of time imo, but I was also slow to change.
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I PC my 9mm because I have a lot of problems picking that little 120gr TC out of the LuberSizer without whipping the lub out of the lub groove.
I also have an older Lyman 225 gr RN 45acp that needs to be bumped up a little so it doesn't lead.
PCing those boolits solves those problems.
Yes I still use normal sizing/lubing on the rest of my boolets