Nolan- 2" high at 50 yards should put you about dead on at 100 yards. Why it required the ramp to move so far up, I do not know. Perhaps it is the kind of sight picture you are drawing. Meaning, holding level to the top or do you bury the sight to the bottom of the U or V what ever the case.

The only other thing you could do is replace the sights with something that would be more sight picture friendly. Perhaps a front sight that you could adjust to match your sight picture...