chrome ignition box: high voltage at the outside?

KitCarlson said

Some damage is the result of carbon tracking on an undesired spark path, and is nearly invisible. Other damage may occur in the insulation of the coil windings. Damages are not easy to test for, but degrade the ignition capacity, for adverse conditions.

When I saw the TrailBeast HEI demo video, my reaction was oh my.

Click to expand...

And yet I have not in my entire life had an ignition system fail from letting the spark jump.:D
By luck, or by chance I'll still take it.
I get that you are saying that there is a possibility of partial degredation.
I figure, if the spark will jump a couple of inches without jumping internally it's easily capable of running on an engine.