Chimbu Chuck,
I have to ask the question... if you overheat the brakes during taxi, what will you stop with near V1? Most (not all) brake pads on GA aircraft are tiny... are they going to be effective considering your only taking off once and not doing circuits?
Secondly, most pilots I know do their run ups prior to taxiing for their run/charter etc.... first thing in the morning. Runups on the run, especially at night, are often hazardous... head inside / head outside and all that stuff. As for air flow.... just have a good look at your oil temps and CHT's next time you do a stationary run-up.
I love the comment to save props, if you have your big hoofs on the brakes are you preventing alot of stone damage? Unless your are taxiing at Vr, then you wont need to worry about the brakes.......
So where do you do your before takeoff checks... during rotate?
pinky just think... he's the owner.. of course h's not wanting to spend cash.
He owns the bloody thing