Thanks for the suggestions, everyone. I do like the Snap-on interchangeable pieces, but the "bending like a banana" thing worries me, especially for the cost. I like the Wright ratchet but I wonder if the mechanism will hold up to 42" of moment arm and my ginormous manly muscles.
I do have a nice S-K set from about seven years ago that has one of those slider bar tee handle gizmos and I thought maybe I could put a cheater on that if the need arose. Good idea? Bad idea? Don't know how much those heads can take. My only real concern is that if that thing asplodes, I'm gonna be S.O.L. until I can get a new tool. I'm kind of the go-to guy for tools in the shop and if I don't have one, we ain't got one.