ORIGINAL: GMMAT
Efficiency. If your bow is shooting your arrow correctly it is transferring the enrgy more efficiently. The arrow is flying more efficiently amd will have the best chance to do its' job, efficiently. Can untuned bows and arrows kill game? Sure, happens every year, butif the shot is less than good and the conditions are less than good I want my equipment functioning most efficiently because it will be more forgiving of my erros and bad conditions.
True, Bruce....and I though of that. And I guess the question could be asked.....tuned for what? What you speak of is why some people shoudn't be shooting mechanicals.
I guess I've been shooting a lot of targets of late....and my answer was geared more towards that.
Well, if I am just shooting field points then I stop tuning when the bow and arrow are shooting they way I think they should. If I am going to be shooting broadheads then I will put broadheads on the shafts and tune those too. I have found, even with my Muzzy Phantoms, that, if I even have to make any adjustments, they are very, very small.
I try and keep my shaft as close to centershot as possible. That means I adjust my DW to compensate for the spine before I ever adjust my rest. That way I only have to move my rest a small amount.
I am not sure what you meant by "tuned for what" so I gave a couple of answers.