I have an RCBS horizontal trimmer, complete with collets and what I like about it is that I can "custom" trim the length. In other words find the shortest case (still within spec) and trim the others to that length.
I'm always on the lookout for new gizmos that might be better though.
Is the Lee adjustable in such a fashion or is it set to a SAMMI spec of the ideal length and there's no adjustment?
Edit: Never mind. I should have checked the Lee site first-it's pre set to SAMMI specs. If they'd just make the upper assembly adjustable to some extent (say, within .020 max) I'd probably buy one.