help me find an electrical gremlin, please

I found one tune-up guy who CLAIMS to have replaced several pickups which evidently had weak magnets. I don't work with enough of these to get a good enough sample.

in all honestly, in all my days, i have yet to lose spark over a bad pick-up in any electronic distributor even being 35 years old. maybe its luck, i dont know, but 99% of the time its been a bad ECU or ground thats caused my issues.