Interesting CKruse. That was the first I'd seen with a bushing in a 67 1/2 but I know a lot of options were available on bows I didnt pay attention to then.
I just tend to shy away from them, neither of mine has one and prefer the "plain" ones that way I know they werent installed later.
Nothing "wrong" with bushings and have seen several on 68/69 ones but my first on a first year edition.
Always cheking those three years out when one is for sale. In a few months Ill be looking for one between my two in weight too.
Good luck, Cody.