Second that. . .Bitzenberger all the way

You can get the jig with one clamp, either straight (which can do offset), right helical, or left helical.

They also sell all of the clamps seperately. So you can get a straight clamp with the jig then buy the helical if you want to try some vanes set up that way.

Sounds like you dumped atoo muchmoney on jigs already, so you need to just break down and buy the Bitz, you won't have those troubles any longer.

Good luck

Bols