I'd like to see Ashby's study repeated using one specific brand of broadhead and bow as constants, with the variables being point of impact, arrow diameters, materials and arrow weights. With those results, we would be a long way toward blowing all the theory, mythology and outright BS totally out of arrow selection.
Art, I assume you know he's in the process of doing a new study, right? I have no idea what the parameters are this time, but I'm pretty sure he's using a wide variety of modern day heads.
I think it's still a few years from completion, so, keep the faith
