Z-Bar question regarding hole under clutch rod post

Dano, Yes I'm aware it is "correct" according to Brewer's site, and I'm not questioning Brewers. But look at Jeff Alder's pictures in post #5. The hole is not there. I'm thinking maybe there was a use for it in '64 or '66 cars, but works for all 3 years. As best I can tell, there is no use for it in '65 A bodies.