ORIGINAL: triggertrav
I guess what really interested me was that i would notice a difference of 12 inches of drop at 40 yds. Meaning that the lighter/faster arrow is going to shot quite a bit flatter.
Considering this - in the instance say that you misjudge a target at 40 yards with the heavier arrow. Yes, you would have the more powerful energy, but your shot could be 5 inches low. Now shooting the lighter setup i guess i would rather be 1/2 an inch low andnot as much energy, but plenty to take an animal ethically(deer specifically).
Not necessarily. You may want to check the numbers on that. A heavy arrow will retain it's speed better downrange, and at some point the light arrow will drop right off the face of the earth. But to be honest, I'm not sure where that is.