It's a factory cdi, not a conversion.
I'm really tempted to go the glow plug route, however I've heard the horror stories of backfires and kickbacks and I'm very reluctant to tempt fate. I've replaced the sensor, module and plug with no change to the problem, even running it directly off a battery instead of through the regulator to isolate that.
If I had an old workhorse to mount this into I might not be so concerned but as it is my Oxai ship is getting pounded left and right at the moment. It's turned out to be a good thing it was one of their more "solid" airframes.