Maybe even a (gasp) NOCK??

We' re just goofing around buckmasterg... People have been shooting 4-blade heads on 3-fletch arrows ever since they started putting 4 blades on broadheads. Use 4" or 5" fletching and you won' t have any problems.

Exactly aligning the blades to the fletches is something that some people have nearly a religious zeal about. It might add a degree of confidence that each arrow is as close to exactly the same as possible, but it really isn' t necessary. It' s one of the many urban legends that are so widely told in archery.