Possibly a part of the problem we all face with applying P-charts to our work in Ag' is the variety of strips we fly off, and everything does vary a hell of a lot, but one thing is for sure you cannot open the ERSA and extract TORA,TODA, ASDA , surface, slope Cardinal direction or whether or not dancing girls will greet us on arrival.
Personally the last one is of greater interest.
Classic case , tomorrow we're working off a strip I've never seen 80km away first thing in the morning and hope to haul near full loads off it.
S'pose I really should go to bed!