Like people post pictures from their trips, why don't we post pictures of our EDM700 data?
I can contribute about 400 of them ...
The bottom line, however, is that some of us have decent planes with the engine instrumentation so we can see what is going on. The majority of UK PPLs are operating within the self fly hire scene and those planes will never have any of that. The school has made a business decision to blow away extra 30% on fuel, for knocking say 100F off their CHTs. The renter pays for it through an inflated "wet" rate.