Why do some longbowmen - particularly historically minded ones - adopt an exaggerated stance with their feet wide apart and their glutes sticking out behind. For example, please see front of Quicks catalogue. Is there some biological advantage in this for drawing heavier poundage bows? Or is it "historically justified"? In which case, is it described in original texts anywhere, or is it copied from picture evidence? If the latter, then it might be about as sensible as assuming that ancient Egyptians walked funny!