You cannot get as much helical as you want. Each jig has a different degree of helical. You can adjust your jig so you get a little helical or a lot of helical. You are not limited to the clamp's helical; you are limited to the jigs helical. By that I mean you can put thearrow in the jig and put a vane on and get the given helical, or you canadjust the jig to get maximum helical.You can (at least on the Bitzenburger jigs) loosen two screws toadjust the jig to get a harder helical.