Blazer, quick spins, NAPs, feathers, vanes, helical, off set???? It all comes down to what works for you. No question in my mind helical controls better than others. Control comes from surface area, which is not only size but surface design. Feathers control over plastic, they have more surface area per inch. However feathers can be noisy and don;t like hunting in the rain. But I don;t hunt in the rain so not a big deal for me. Noise on the other hand no so good. Tried the Razar feathers last year and so far so good. The best of both worlds, small relatively fast feather, good control and little noise.