You start with a shaft with a point and nock only no fletchings. Stand about 10 to 15 yards from the target and shoot. Then you start adjusting, if your arrow hits with the nock to the right your over spined if it hits left you are under spined. You can either add weight to the front of the shaft if you are over spined or add weight to the back if you are under spined. Or if you are way out of whack change shafts to a stiffer shaft or vise versa. I found that the Gold Tip traditional arrows were easy to tune because of the brass weight system you can add to the insert or the nock bushing to adjust your spine. It is just a lot of tinkering I found that slightly over spined arrows(hitting a little nock right) flew better for me than an under spined shafts.
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Red Feather Archery
Black Widow PLX Osage,Diamondback Archery Venom Longbow
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