I've tried Quick Spins and Blazers. I've found that with my setup, the quickspins appeared a bit faster and grouped a bit better. Now, with a different setup, realize this might not be the case. Also, I think the quick spins are a bit nicer to look at than the blazers because of the writing on the vanes, this might also have something to do with what "appeared" to be a better performance. I fletch all my arrows with quick spins.