If it is between the TT and a Limb Driver, thereis no choice to be made, Limb Driver all the way. That rest is so awesome. Couple guys I target shoot with have them, and one of my hunting friends does too, and they all give it rave reviews. I shot one for a little bit but I had just bought a new a new QAD, and was more or less playing with the limb driver when the shop got one in. Very accurate and easy to tune. The Whammy is pretty sweet too, but i think the Limb Driver is a better option.