without a doubt the best flying arrow on the market proven scientifically by the new technology velocitip..[see,, velocitip.com] american made premiere shafts.. see them at Quest products usa.com......and contact billy bryant @ 1-800-460-8833 for dealer info......they also dont distribute to the big box stores
If they are that good then they must have a great spine tolerance rating. What is the +/- tolerance for around the shaft?