[cpncrunch]

Air taxis, fire suppression, medevac, flight training, search and rescue, geomapping, aerial application, police, etc.

Very few of these high compression, high HP planes are flown by people just "flying our own plane". Most of us fly small planes that can easily burn unleaded.

[AnIdiotOnTheNet]

You can understand my confusion when GP specifically says 'private', that doesn't immediately call to mind fire, police, and medevac.

The rest don't sound like particularly good reasons to keep showering people with lead.