If you are well tuned and the arrows are flying well, you are good to go. A lot of the statistical data that folks love to tinker with doesn't need to be the Holy Grail of your archery set up. The key is good flight and accuracy while shooting a sharp broadhead, whether two or three blades are used. I don't knock those who tinker in great detail to get absolute perfection from tuning, but I don't feel that is totally necessary. (I realize the engineers and technically oriented guys may disagree with me here, and I sure don't want to start an argument. Frankly, a lot of these guys are a lot smarter than me.) Pretty much, the good flight indicates good tuning, enough said. Instead, put your work into achieving greater accuracy and hunting skills.