I love the case guage and I guage every 20 rounds or so.. especially if it's range brass...I seperate cases by headstamp and case guage each brand. Some brands don't need any trimmed and some need a lot. I use the dillion 550 with the size and trim die with the electric trim motor. It's not really any extra work on a press like that. I get a better feeling of consistency. Piece of mind.. I guess that's what it's really worth....