No so sure about that.
The combustion process and its byproducts are basically a given.
Each individual tunes to produce desired results
Some desire every little last drop of power
Some desire longevity
I dont mind a little carbon on the piston tops, but I preferr clean.
I believe clean is better, and nobody will convince me otherwise
When tuned to run clean, my saws run cool and have never given me any problems.
When they were producing carbon, I had to swap plugs a few times, some due to carbon nuggets getting wedged between the sparkplug ground and electrode
If them nuggets can get in the plug gap, they can also get into the rings and the ring lands ................
I preferr no carbon, thank you.
No damage is being done, and whatever is washing the piston tops and cylinders is leaving a nice oily residue ................ cant say that when I was making carbon.
If I want every last ounce of performance, I will tune for it .............. but my saws aint cutting cookies, they are working and making me cabbage