You are not suposed to paper tune with a broad head. You broad head tune with a broad head. That is like taking a step backward. Paper tuning tells you what the arrow is doing right as it leaves the bow. It is the first step in basic tuning, not the end. In order to broad head tune you need more distance to see how the blades on the head will effect flight.

There are also different camps on broad head tuning. Some strive to get the fixed blades to hit as close to the field points as they can, others look for the most accuracy and will forgive a few inches of difference between the two. If you don't have enough fletching, enough FOC or close enough spine to what you need you will play hell trying to get them to come together. Crappy arrows don't help either.

Paul