i like the idea.. i think it would probably help as much or more than the manufacturer charts..
make of bow, reflex/deflex longbow, d shape longbow, recurve, selfbow etc..
string material, weight at draw,arrow model, weight of arrow, length of arrow , point weight, size of fletch
shooting with or without bow quiver... and im sure theres a bunch more to consider...
braceheight, string silencers, nock height..split finger, three under
just some ideas to toss out when creating a chart..