No seriously, pull your plotter out, and take a look at it. I understand the logic of to and from. However, this doesn't make sense to me. Typically, ten degrees to the right would be either 10degrees or 190degrees (on the to&fro concept) but, if you read it 10degrees to the right on the CP-1...from a 360 or 180 heading, it reads 350 0r 170. I'm sure I'm missing something, either that or my not so stable ex who gave it to me, is trying to drive me nuts.