anyone ever use the quick fletch vanes? if so how well do they work?

I've used them and they work fine. As well as standard fletching. Some say that in extremely cold weather they slip. But they held up fine for me. If you do decide to use them be sure to have the back end overhang the arrow about 1/16" before you dip it in the hot water as it will shrink. If any is left hanging over you can trim with a razor blade.