If you are suing a drop away rest there is absolutely no reason not to have a helical clamp. Helical just does a better job stabilizing broadheads. I have both left and right. Get Right Hand.

As for a jig? There is none better or more versitile (spelling) than the Bitzenburger. Nor is there any more expensive. The Bitz can be used with right, left, or straight clamps (you just need to get the clamps), and the angle can be changed as you wish. It's all metal and pretty indestructible. I say this because eventually you're going to get glue on the clamp and have to scrape it off with a knife or razor blade. This is where you don't want a plastic clamp.

How long will you have this jig? My Bitz is over 30 years old and works as well as the day I bought it. They have something that works so have done very little to change it. If you look at any place that makes arrows or repairs them I'll bet you find Bitzenburger jigs.