I always thoughts reach, because the clavicle literally covers distance from the knuckle to the face, so if someone has shorter arms, but a longer reach, surely their knuckle would be further away from their face since the clavicle also covers distance from the end of the knuckle to the face? What are your thoughts?
Doubt there's too much in it. But I'd guess reach by way of arm length maybe's some advantage. It gives you all round reach advantage regardless of upper body positioning.