ORIGINAL: Roskoe
I'm using the same jig as well - Blitz with right helical. With careful adjustment of the ends of the clamp, you can get full complete contact with no finger tweaking necessary. It takes a little more timethan setting the jig up forlarger diameter shafts, but it can be done.
X2 , I also use right helical with blazers on my ACC's ... granted it takes a bit more time to set-up the jig , but i do get full contact at both ends .