I think it should follow that if airlines can run engines on condition untill they show wear, rather then TBO...GA aircraft should be able to do it as well..
And while we are at it, in our corporate operations, just like the airlines, we hire our own mechanic to determine engine condition...
Something tells me though...with the boss in the back, being sold on the idea of never having to pay for engine overhauls, might rethink this is I pull up right at the fence(because I calculated balanced field into the overrun)..
(Sorry just saw 'Flying Cheap' on Frontline)