Are you using one of the mini chop saws a
And a jig to cut the shoulder off the brass?
Then sizing it in a die, then final trim to length?

A trimmer that indexes from the shoulder of the case should make it go quicker than one supported by a pilot.
And a little less brass handling.

This is only based from me helping marcus convert some once for the Rumbler benefit.
And knowing diffrences between trimmers.

But sure I could see the issue with multiple pcs of brass sized 0.002 less than the size of the pilot getting hot.