Hi, it would be helpful to have the corresponding N1 or EPR setting for the assumed temperature in the takeoff performance, so that it can be cross-checked. It feels a bit like blind faith typing in an assumed temperature when the final N1 can’t be confirmed to be at or above that for the assumed temperature on the simbrief takeoff performance table.
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I have thought the same thing, I always thought it may be too difficult because each dev uses different coding and calculations to determine power output, and there is a free takeoff perf calculator that I used and i found its n1/epr ratings for the assumed/reduced thrust are either spot on or varies +/- a bit, so it could be that its somewhat model / dev / sim dependent on the way the model calculates n1/ epr (just my thoughts, but maybe navigraph will prove me wrong)