Ran across this idea on NOEs forum.
I think it would be awkward sizing on the upstroke, and the person who made that setup had to add a weight to the handle. I’ve been using a Lyman press that has a handle that can be configured backwards. If I dedicated it to sizing boolits it would give me an excuse to upgrade to a more respectable press.
Edit: sorry, my press pic is 90 deg out of wack for some reason.