I had a situation where an incorrectly installed oil filter was spewing oil throughout the taxi and run up. The engine finally ran out of oil in the take off run as indicated by losss of pressure and misbehaving prop governor. I will continue checking power output during the take off run. Lots of things are not a requirement but are good airmanship. Basic stuff really.
Another thing to do whilst on the rwy is confirm dg alignment and correct rwy heading. Suprising how many so called professionals dont do the basics.
