[QUOTE=Nomercy448;4151657]You're missing the underlying principle for broadhead tuning entirely. The POINT of broadhead tuning is NOT to get your BH's to fly to the same POI as your FP's, that's simply a side effect. As you pointed out, the drag of BH's is NOT the same as FP's, so as you increase range, the increased drag of BH's will cause more drop under the arrow than it had with FP's. That's straight forward, simple physics.

Why a shooter SHOULD BH tune, which IS TUNING, not just adjusting, is the simple fact that eccentricity of the BH matters considerably more than it does for FP's. The BH's have a larger superficial (average) diameter, therefore any eccentricity as it spins in the air will have a more dramatic effect. Also, the 'modular' construction of replaceable blade BH's means combined with that increased drag on the blades means you'll see uneven drag on one side versus the other unless you make your best effort to eliminate the eccentric imbalance.

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While I also agree, but I think the biggest area missed for those of us who do "BH Tune" is to "tune" to the fletching as well. I have seen way to many people say they have "tuned" the BH's to the shaft but ignored the fletching which aerodynamically will throw it all away. IMHO more so than anything else. Which for me was always a puzzler as to why anyone would shoot a 2 blade or even a 4 blade BH..

3 vanes = 3 blade tuned to the leading edge = maximum spin = "true" flight path...