Pilot here too, with a high performance rating so I know how the gauge is used. In my case it's an absolute requirement to set prop pitch efficiently! Doesn't change what I think about what that gauge is called one bit. I've had the logic of that name defined and beat into my head so many different ways by so many guys I have so much respect for....... and it till make me crazy. I just try not to think about it, and use the info it's feeding me to do what I need to do.