I'm guessing that this applies to all the Novas. I have a dvr xp, and I like it fine. The banjo, though was constantly giving me problems and Jeff Nicol offered to make one for me reasonably. It is fantastic. Unlike the commercials ones, about which I read, you can put tool rests very close to the wood and the banjo is so sturdy and steady, that even a hack like me can produce better work.
Hilel