Anyone tried the latest update?
I gave it a spin and the fuel flow changes with speed, but only a few Kg/m, then it's capped and no matter what speed it stays there.
E.g. 20k feet, full A/B @M1.0 ff is 270 (just an example number), at M1.15 is 274, then it's capped at 274 all the way to whatever speed you can reach.