I don't have any experience with that particular fletcher. I use Bitzenburger's, and have heard a lot of good things about the BPE. You will have to use left wing feathers with a left helical clamp, and vice-versa. If you try to use the opposites, it will go against the natural curve of the feather. Check out the fletcher--that is one of those things that it doesn't pay to scrimp on.

Chad