Anyone else suspect we're dealing with a simmer?
No, because the 720° ITT Pilatus recommends for the B engine you donīt find in the POH and also not on the internet.
This sounds like a fairly strange question coming from someone who supposedly flies the actual airplane for an actual company.
The data is in the POH, but one has to calculate every distance and altitude.
The data above takes a week to be calculated by hand.