I've got one of these on my first gasser (WH Edge 540), so I have NO idea what I'm doing. Where do you ground the ignition? Can the Hall Effect sensor be replaced? I'm afraid I may have fried it. I powered up the system to see if my opto kill swich was working. The first time I did, I noticed a spark between the sensor and the prop hub. I did it w/o the ground strap connected to anything and now I don't see a spark when I power it up. Was it just a fluke? The manual says something about grounding it to the base of the spark plug with a hose clamp. That seems pretty ghetto, does BME really intend their engines to be set up this way?