While I do see your point to an extent, I do however disagree.....

Lets say we have three setups. One shoots 285, 305 and 325.

The 285 FPS setup will have 13.32 inches of drop from 20 - 40 yards.

The 305 FPS setup will have 11.05 inches of drop from 20 - 40 yards.

The 325 FPS setup will have 9.18 inches of drop from 20 -40 yards.

Speed does make a difference. Bascially youeliminate one inch of arch for every 10 FPS increase in arrow speed in your trajectory from 20 - 40 yards.

Two inches of flattened trajectory for 20 FPS is nothing to sneeze at IMO.

[8D]