ORIGINAL: Arthur P
Well, ya know... On thinking about this, there is another way to go with this detuning stuff. Say you've got your bow tuned to shoot broadheads perfectly, but it won't shoot field points to the same point of aim.However, you really, really want your field points to hit right with your broadheads. That way you won't be forced to change your sight settings when switching from broadheads to field points.
So, you detune the bow from shooting your broadheads perfectly to make them shoot to the same point of impact you get with field points. It's not perfectly tuned for either, but maybe good enough to suit your needs.
That would be detuning for the sake of convenience.
Arthur, I've always wondered about this one. It seems to go against logic. Is a bow truely tuned properly if you can't get broadheads hitting in a similar spot to field tips? It suggests to me that something is not right, otherwise the broadhead wouldn't be affected differently. Of course, when I consider bow tuning, I always include the arrows in this equation. Proper spine and high FOC helps when trying to resist the tendency of a broadhead to plane.
For example, I would never consider a set-up tuned that had broadheads impacting 4" away from field tips at 20 yards, yet I constantly see guys moving their sights and not worrying about what caused the broadhead to plane that much. That would leave me real uneasy about hunting with such a set-up.