Definitely one of the things I regret selling.
I know I have the Hughes shafts now cuz I finally sprung for their rockers a couple years ago. I believe they have banana grooves. With that said this would be a good point to start a quick little thread to get those dimensions. Again I don't think mine are stock and I don't think I'll have my rockers off anytime soon..
I'd love to see a picture with a measuring tape next to the groove and I would wonder if you'd want them facing a certain way?