I have a buggered one to practise on, as well as plenty of spares to try for good. I was just over at the old mans for Xmas breakfast, and I showed him this thread, and the picture of your in your album. No doubt he'll be able to do it. He suggested that he'd need to go quite slow, due to it not being a continuous cut. (Being all offset) And that that could cause some vibration) Although the crank isn't very long. And he's unsure whether or not it may damage the journal to try run a steady on it.Did you do much to the sides of your crank? Or just radius them? Do you have any more pictures of it?