MilDot - Thanks for your help. Finally got it figured out squared away. However, in the process of setting ATA I think I have gotten too many twists in the string now. This is probably why Bowtech lists their ATA and Brace height as approximate. With the ATA set correctly, the brace height is too large and my valley is shorter. Whith brace height set the opposite applies. Something in the middle is probably the correct answer. Does anyone know what the string rate of twist should be on the new Bowtechs - specifically the tribute?