To VFD or Rotary Phase converter

Looks like I'll be buying/building a Rotary converter. I completely forgot about the two speed motor. It wasn't the direction I really wanted to go. I have the VFD on the mill and it has worked flawlessly. I would have liked using one on the lathe also but it just doesn't seem to be the best choice. Well, I like new adventures. Thank you everyone for the inputs. Off we go!!!