Buckfever is right ! The straightline cams are draw length specific and can not be adjusted.........Q2 has this type cam ! The FX has a Maxcam and cam be adjusted 1" in half inch increments !

The new HP cams are draw length specific too......but changing from 80% to 65% with increase decrease draw length by 1/2" .........but your shooting off the backwall on 65%.......there is no valley !!

Hope that helps ! Oh and I also agree with BF on the minimax cam......A friend's wife has an FX with one and it is a smooth drawing and shooting bow !