Does anyone know how to measure the scope height above boreline using canted bases??? do you use the back end of the scope where it sits higher above boreline or towards the objective where it's closer??? Just as an example, on my 17hmr if I measure from the objective it's 1.5" above bore. If I measure from the center of the scope it's 1.8" and If I measure from the rear it's 1.97" my data from shooting from 25 40 50 and 100 yards plugging into trajectory software prints closer when using 1.97" is there a correct formula or method to properly measuring scope height when using canted bases?? thanks in advance!!