Alot of times a field pt & BH don't hit the same spot. I haven't shot the spitfire max so i really don't know whats going on with it. Best advice i can give you with a 3 dot is use middle dot sight in at 30 yds. the top dot should be very close at 20 & bottom dot on at 40 yds. Seeing how you have already shot the BH just use it to sight in yer dot scope. CB's don't tune in like vertical Bows do. Its the arrow we have to tune in with the CB.