I've wondered the same thing Coug, there aren't many people that are going to test their bow out at IBO because there aren't many 30 inchers out there. It would be pretty to falsify info.

I have a question, if you were to measure the dia. of a 3 blade head, wouldn't you take the distance from the tip out to the furthest edge of the blade and multiply by 2? Obviously it's easy with a 4-blade.