How do your Feild tips fly?, are the Thunderheads consistant, will they group well at 20,30, and 40, don't worry about low or high for moment. What is the grouping like. Then I suggest you google up Walk back tuning with Curt wells. Good Luck!
09 Mathews Reezen, Tru Ball releases and Sights, Gold Tip Arrows, Slick Tricks, Limb Saver Equipment, John Deere, Polaris Ranger, Big Game and Summit stands. And doing all that is possible to protect and preserve our Hunting Heritage.