hey guys/gals, I got another question for ya. I hope this is the right forum to ask it in. I was wondering if all the pots are the same dia. as far as the spline part, and if you think they sell a cheap-o one at radio shack that I can destroy to put in the drill chuck on my lathe. while I am waiting for parts I thought I could turn my knobs. Thank you for any input ya got on it.