I love them, some people don't like them because they touch their face. I don't have any issues with it, and they fly great for me. Just make sure you have clearance for them with the provided tester. Unlike a normal fletching these don't give if they are making contact.
Here is the deer I took this past year using them. I have been shooting them for 5 years now.
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NBA Samurai Genetix 71lbs 28.5" 480.15 grain arrow =[]------------->
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I have looked at them a lot and would like to try them one day. Would have to get a new rest to do this though.
Doesn't hurt to try new things. Only way to see what works for you and what don't is to try it. I personally think that FOB's are a great example of this. You have feathers, plastic vanes, short, long, right, straight, and left helical and then look at flu flu's.
just got done shooting them and i love them . i have never had arrows fly like that . im just wondering about the niose thay make dose it affect game if not im sold on them
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you cant kill bucks sittin on your #$&? at home on the couch