What you get depends on what you are going to use to build your arrows... The term you are looking for is Helical ....
There are straight , left helical , and right Helical , and offset.
I use easton a/c/c shafts and 2 " blazer vanes ... mine are 3 deg. offset / right helical. ...
Jo Jan is one of the better jigs...Bitzenburger is great and more $$$.
Shorter vanes are harder to get glued solidly on a shaft in a strong helical twist. Thats why they are usually just offset 2-3 degrees. Longer vanes of course can be set stronger, since you have more backing of the vane in contact with the shaft. Like I said, it kind of depends on what you plan to build your arrows with....
And are you cutting your own shafts and putting in the inserts .... etc.....
MET
There are straight , left helical , and right Helical , and offset.
I use easton a/c/c shafts and 2 " blazer vanes ... mine are 3 deg. offset / right helical. ...
Jo Jan is one of the better jigs...Bitzenburger is great and more $$$.
Shorter vanes are harder to get glued solidly on a shaft in a strong helical twist. Thats why they are usually just offset 2-3 degrees. Longer vanes of course can be set stronger, since you have more backing of the vane in contact with the shaft. Like I said, it kind of depends on what you plan to build your arrows with....
And are you cutting your own shafts and putting in the inserts .... etc.....
MET