[SSLance]

I was not data logging at the time, but I have plenty of WOT logs showing the tune performing as desired.

I'm still leaning more toward something happening in that cylinder that raised compression or lowered octane enough to cause the melting of the edge of the piston. There were several mechanical failures there and all of the rest of the cylinders were fine.

We may have been close to the edge and a minor variance put it over, not discounting that...but if it truly was only tune related, it would have shown more damage across the board and most likely would have happened earlier.

It had been pushing antifreeze out recovery tank for two events prior, indicating the start of the real problem. The burnt piston is more of a result of that problem than the tune.

But yes, I probably will back it back away from the edge next go ahead.