Well, I was one of the first to put a P-mag on a C-85 and now (that engine went south and parted out) since I couldn't stand to have a 1200.00 ignition laying around while my O-235 was using slicks , I milled an adapter to line up the gears E-mag thought it was feesible and even offered to replace my faceplate with a Lycoming model at cost I forged ahead and it works wonderfully, starting is so much nicer and now with no prime! But.....another issue has arisen with my engine monitor (MGL E-1) won't see the tach pulse from the P-mag but still works fine hooked to the p-lead of the right side slick???? MGL says the combo has worked but so far I haven't had success. anyone on here have this combination?