IMO alot of the information comes form the older broadheads. Alot of the older broadheads had a tendency to "plane". That was why alot of guys always had to sight their bows in with a different POI with field points over broadheads.

The younger guys probaly don't remember this because most modern broadhead's "fly" considerably better than the older, and basically larger(and heavier) broadheads.

I remember the 3 bladed Wasp was the first broadhead I shot that hit the same spot as my field tip.

I am not saying the guys are wrong about the bow being properly tuned. Because they are 100% correct about that as well. I am only saying that broadhead's have been improved drastically over the last 30 or so years.

Some of the new broadheads are truly incredible(priced as well). Tom.