Ewolf, the new Beman Max 4 and the Black Max are some of the best arrows I have checked for spine. I was really impressed with these shafts. Gold tips were the worst, the spine was very inconsistant. I can't remember right off but some were out .030-.040. I've also read that a few other people that check spine had the same readings. I checked out 4 dz GT hunter pros @ over $90 a dz and was not impressed. I also heard that CarbonTech had about the best spine tolerances,but never purchased any. For the price I can get Bemans for Its hard to buy anything else>