If you cannot get Montec's to have the same POI as field points, then you have a tuning issue. How was your hole when you paper tuned with field points? I would walk back tune and see if that helps at all (I am assuming it will). I have not ran your shafts to see if the spine is correct, but it sounds right. At the end of the day, your BHs should have the same POI as your field points if everything is properly tuned.