I see cleaning primer pockets as optional, but not measuring and trimming the cases over 1.760". Do they all need to be 1.750"? No. Just under 1.760".

X-dies work fine, I have one for .308 and .223, but I don't bother screwing with the mandrel any more. I just trim them when needed. Might be every other firing, might be every third firing. Big deal.