When you lighten the back end of your arrow you made it under spine. That is why they are going right. The tac vanes are heavier so they stiffened the spine. Try them with lighter point weight and you will see a difference. Good video 👊
Shouldn't be anywhere near enough of a difference in weight to affect the spine noticeably. You'd have to see a big difference in arrow speed before you see the effects of back end weight on dynamic spine. Different harmonic or aerodynamic effects? Sure. But not dynamic spine.
Curious what they would look like shooting through a Papertuner.
I started to paper tune but was afraid it would mess them up and I wouldn’t be able to test them.
When you lighten the back end of your arrow you made it under spine. That is why they are going right. The tac vanes are heavier so they stiffened the spine. Try them with lighter point weight and you will see a difference. Good video 👊
Good points
Shouldn't be anywhere near enough of a difference in weight to affect the spine noticeably. You'd have to see a big difference in arrow speed before you see the effects of back end weight on dynamic spine.
Different harmonic or aerodynamic effects? Sure. But not dynamic spine.