I was searching around the site looking for some common fixes for Pro Mag 44 issues. Most threads were about not starting, no spark, not enough rpm, rotor phasing etc. The other threads were more like maybe a points box went bad or coil or crank trigger. Since most small teams don’t have the budget to carry a spare mag, points box, crank trigger, timing box (grid, 8973, Leahy, six shooter,etc) so I wanted to start this thread so we can share our experiences together. Let me start by saying that I like the Racepak inductive pickup because it’s rpm log shows everytime the coil fires. If there is a down spike on the rpm graph while using the inductive pickup, the coil didn’t fire for some reason. Primary causes would be crank trigger or coil. I have experienced both recently. The bad coil was breaking down under load and showed a down spike randomly but not all the time and not always continuous. I didn’t notice any ‘shooting ducks’ or raw fuel shooting out of the pipes under load. I figured it was a Racepak issue so tech support came over and they thought it was a mis-fire situation for whatever reason (bad plug, plug wires, coil etc). At the time I had written it off but around this time a blower belt issue began to develop, but the car still wasn’t running all that bad, we were running some career best numbers at that time. Since kicking the blower belt is such a mess and expensive we sent everything out to be tested. Turns out coil was breaking down under load. I also had an issue with down spikes on the RPM graph not as frequent as the above issue (only 2-3 times on the run), but I could visibly see raw fuel out of the pipes along with a slight performance disadvantage. This was the first time out with a new to them engine with the crank trigger already installed from the previous owner. This was also with a Racepak inductive pickup. Once we switched to a new crank trigger the RPM graph went back to normal and performance picked back up. So what have you experienced? Figure out a points box was bad? How about the magneto itself? What were the symptoms?