Most excellent! Good tool for people working on magneto ignitions, for sure. I could have used that when I was working on a magneto-fired Crosley engine that ran a military generator. As it turned out, the magneto was good and we got that engine running in just one day. The biggest problem with that one was that it used a toothed timing belt to spin the magneto and that was broken when we started working on the genset.
It took me several phone calls, back in the 1970s, to chase down that toothed belt. Once we did, we also had to figure out how to get the timing right. Worked out well, though, and the engine had almost zero hours when we started working on it, so it was in great shape.