Timing light for multiple spark Ignition??

PRH said

But I can tell you from personal experience........ sometimes everything appears to be working normally....... when in fact it’s not...... at all.

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Exactly.
I didn't need the light to tell me the timing was off tho,lol . My ancient non d-back told the truth . Over 3000 the multi-strikes ( at least the ones I have seen) revert to single hit so I could still use the Db to set the power timing. Or so I thought.....