Honestly, never give it any thought until today. I received a diagram showing the coil that is used on the Mitsu CDI kit. Lo and behold, there is another tap, which was cut off but yet long enough for me solder a wire to. After making a few checks, I thought it would work. While it is much much better and works (somewhat), it did not solve my problem. Lighting voltage is a little too high and charging is a little low. Can't get but about a 1 amp and that's at 8000RPM. Swapped the yellow and green and saw basically the same. For sure, both coils are identical. This coil has 3 windings, similar to an OEM Mitsu coil, but the wire size and calculated length of wire per coil is a little different than anything I've seen before. close but no cigar yet. Not sure how much longer I'll tinker with it before I slap in a OEM Mitsu coil and make sure the CDI works as expected on the bike. By the way, I saw a prototype of a 12v kit with CDI from who I think is the designer of all the kits you see on e-Bay. 3 coils: 1 for CDI and 2 for lighting/charging. Yep, 3 coils crammed on a single 6v stator plate. No further details, but I would assume a custom Rec/Reg or just use 2 legs of a 3 phase Rec/Reg.