I had an unfortunate mishap a couple of weeks ago in that I hit a buck and wasn't able to find it (long story, still bummed) and when I posted the story on one of my local forums, one of the guys suggested that I should put a helical on my fletching in order to increase accuracy. Although I don't attribute the lost buck to inaccuracy (it was just over 20 yards and I split fletching and arrows at that range when I practice), it did get me thinking about putting a helical on my fletching.
The more I think about it though, I keep asking myself what affect a spinning arrow with a fixed head would have on penetration. I just can't help but think that if a fixed head is spinning when it hits an animal, if the exposed blades are spinning on impact, wouldn't it slow the arrow down when the spinning blades hit the animal? The energy from the spinning action would come to a sudden stop for the most part.....right?
Since I've never had any experience shooting anything except straight vanes, I am looking to hear from any of you that have experience with both straight and helical vanes. Did you notice any difference in penetration?
OK, I was just uploading a couple of pictures to one of my albums and I noticed a picture of my bow from several years ago that actually has an arrow on it with helical. I can't remember when I changed to straight vanes now....
I buy my arrows in bulk with the vanes on them and I just cut and assemble them myself so depending on my pending decission, I might invest in a fletching rig and start ordering them bare.