Most people set their sight90 deg to the sight bar.If the sight bar isn't parralel with the arrow,the 3rd axis isn't set properly.(unless shot in on a hill)



The sight must be set 90 deg to the arrow to be accurate.


You can leave the sight and bar 90 degto each other but then you will have to shim the sight bar so it is running parralel with the arrow,or the sight pins must be 90 deg to the arrow.


One or the other or both.



See picture