RE: Piston Damage
Keeping this in context, remember that the engine will be turning 11-15,000 rpm and is also very hot.....one little thing goes wrong and mayhem happens. Actually I marvel how strong most of our engines are.
Many are operated by guys who don't know or care much about the engine until it fails and then find fault. Some engines are more prone to fail than others and their faults will surface in short order. A little knowledge and care go a long way.