RE: Is wet power a dead end?
One of the problems with high performance nitro engines is matching the prop to the airframe/engine during changing conditions of density altitude, humidity, and temperature. While conditions demand changes in the engine setup and it’s load, electric’s are unfettered by these concerns. It takes time to learn how to read a plug, how to shim the head or sleeve, and make a decent prop. Plus when you are not running mild sport engines on mild sport fuel, mistakes destroy parts faster than you read this sentence.
With an electric power system, as long as you stay below current or voltage limits, the overall system is much less critical, especially in regards to props.