I can't help myself, I like to tinker and the sight pin idea has so much potential for tinkering. I have an idea for a strip of leather with marks burned on it, marks on the side of the bow just above the arrow, and this idea here, which is an advanced and adjustable sight pin. I understand that i will not be allowed into many trad competitions but the fact is that I will not likely stray outside my county where there are no trad competitions that I know of. Furthermore, I was considering messing with a fixed crawl but it has occurred to me that a fixed crawl is just a way to compensate for the distance between the eye and the back of the arrow to allow the arrow to be accurately used as a sight pin at a given distance; which is no different that a single sight pin, because all a sight pin is used for is to make up for that difference. And the sight pin allows a set area for hooking the string which does not vary, which seems better overall for the bow tune and tiller and arrow flight. Why would you want to vary that when you could just use a sight system on the bow? I will set the pin to a given distance (probably going to be twenty yards) and then I will gap with the pin between twenty yards and where I stand, and then for further distances beyond gap over.
This pin idea here is just a branch with a side branch at 90 degrees. It will be able to be adjusted up and down and then I will adjust windage by cutting or filing back the pin until it's where it needs to be.