If you want to do traditional 120 degree threefletch or 90 degree 4 fletch, then you don't need to buy anything else, as it comes ready to doeither type by just adjustingone of three set screws. There is a little'V' shaped nock centering device that centers the arrow in the jig and holds it in place.

As forgettinga straightclamp, that's up to you and your setup. I have thert helical clamp formine and I see no reason to use anything else. I use a drop-away restso fletching clearance isn't an issue with my setup, and helicalprovides the best stabilization, especially for broadheads.

Mike