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ORIGINAL: mauser06
SC, i understand the parachute thing...its kinda friction and drag...it will slow your arrow quicker and that sorta thing...i know and understand that...even a slight helical will have more drag than straight fletched arrows....but, what you gain is more important than loosing speed IMO...im first and formost a hunter...i need my gear to do its job and my arrows to go where i sent them...
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I used to think the exact same thing.... that the more helical you have the more better off you'll be...... And I could care less about speed myself as I like you are a hunter first last and always.
What I am talking about is performance here.... not speed. Sure, hard helical vanes/feathers will stabilize even a huge two blade head, but when you put so much helical on a fletching that they may almost overlap each other when looking down the arrow from front to back.... its overkill... and your downrange performance can suffer... meaning that energy that was being used to go forward is now being used to spin excessively. Think about how that spinning, and what is effectively the sideways momentum your arrow is holding will be affected when your broad head hits a deer...? Is it going to keep spinning that much or is all the spinning suddenly going to stop and just be wasted by pushing the side of your broadhead againest the deer on a non-cutting surface?
With feathers, and overkill on helical, it will make them much noisier in flight as well. While I'm no speed freak, I'm not going to give a bunch of it away if I don't have to. I want to give some of it away, because I think you can in fact have an arrow that is too fast in a hunting situation (especially with a fixed head)... so in turn I shoot a 450gr arrow at right around 280fps... and thats from a 63# draw.
Additionally, sometimes using that much helical can hide issues that may arise with bow performance such as a weak spine or fletching contact. It doesn't take much helical at all to get an arrow to stabilize any broadhead, assuming that your spine is right and your bow is tuned properly. I guess what I'm saying here is don't let helical become a bandaide for anything.