I have a supernova 2 with the jaws it came with. I think 50mm. They work fine for turning bowls and larger pieces. I've been turning a few birdhouses and smaller finials. I have to start with a fairly large blank and waste a lot of wood because of the the size of the jaws. I've been thinking about getting a set of 25mm so I can start with a smaller blank. What would you recommend?