In the reports the you site theexperts conducting the testsare using industry standard testing procedures. They are not, in any way, attempting to find the maximum efficiency of a particular bow through a wide enough range or arrow weights.
They tested from 350 grains to 650 grains in 25 grain increments. MeanV2 claims that between 400 and 500 grains he saw ke back off. That covers MeanV2's test range very nicely. But they show an ever increasing fucntion (as all the pro tests do). How come?
When you guys say that ke backs off, you are actuallyclaiming that a bow will shoot 2 arrows of different weights with the same ke and efficiency. That's a pretty incredible claim. Why don't you go to Bow Hunter and see if they will publish your findings? The news that too heavy an arrow will lower kinetic energy will interest them immensly.