I've got say something positive about Joe Hunt Magnetos.
I've been using one for a year on my Atlas cafe. The new rare earth magnets and the flatslide carbs make for one kick starting. No problems at all - never a miss. The points are right were I set them a year ago. I came up with detailed instructions and a tool that makes it easier to time plus a reusable silicone housing gasket that doesn't leak. Special spacers are required to keep from crushing the silicone gasket. Best of all you don't need a battery.
I've used electronic ignition and appreciate its benefits. But upgraded old school has arrived with these mags and its too bad they don't bolt right up to Commandos - machining required to fit them behind the cylinders. Some suppliers don't seem to share details on how to set them up and I made some modifications that make things easier. For instance the slotted screws are nearly impossible to deal with when changing points and need to be replaced with allen head cap screws. Taking care of a few details like that makes everything good.
In the photo you can see a bit of the red silicone magneto housing gasket. You can also see the silicone timing cover gasket - this is the only one in existance that I know of.