Love the Nor-vise. You can stop it at 4 pre-set positions, think 12-3-6 & 9 o'clock. Or change the tension for the rotation to work at odd angles. I find myself tying more, and my meager skills improving as a result. The bobbins have a bit of a learning curve, but I do understand and appreciate the concept behind them. Your standard bobbins will work as well. If you have any questions on them just call Norm, he's a hoot to talk to.