Thanks Miriam! Putting a knob in the balance wheel would be easy enough. I just wanted the 3:1 ratio vs the 1:1 that I think that one provides. Even though I started a decent debate over ratios over at TReadle On and I guess some of the ratios and stuff are wrong. I put the hand crank on a 128 I just rescued and it has the 3:1 ratio. So I dunno where folks get these crazy ideas sometimes. Hehe.