Hey , sorry, dont know if anyone will read this or not. Obvs I dont check this forum as often as I should :)
My hinge upgrade involved simple taking it apart and drilling out the hole of the small piece of metal that goes between the two bands. The problem with it - theres three holes. Two of them are slightly larger than the third one, and the bolts used were sized for the smallest hole. This would essentially at least on mine let the unit 'wobble' when you lifted it up and down.
So I took the hinge apart and drilled the smaller hole out to be the same size as the larger two holes. Then went to a hardware store and bought hardware that was exact size of the drilled out hole.
The end result is the hinge bolts dont work their way out anymore and things line up better, once you get them lined up. I still plan on switching the lid gasket to either rutland or might try to use the kamado joe gasket. Hope that helps.