Ha! I forgot about those. I never had a problem with flight but the holes they punched were tiny. Kind of a neat idea though, back when hyper-helical fletching was big. I think I still have about 4 boxes of those collecting dust in my old man's basement. I think my least favorite are Grim Reapers....I just can't get them to shoot consistent groups at all, and about 1/4 of them are defective out of the box. Very cool idea, but if they won't shoot straight they're not for me.
I actually find them more stable then the two blade. I have not shot a deer with them yet. We'll see what happens.
Doesn`t Hank Parker use and endorses them. What`s wrong with Hank? Please tell me that a "celebrity" hunter would not say something was great just cause they paid him to.:p