FM's the State of Play with empasis on Climb performance.

[Robo.]

Originally Posted by Crumpp

Conditions very much matter in aircraft performance and if they do not match, do not expect the same performance.

Ok, with 75lbs. less he should expect better performance then. Is he getting it? No, he isn't. Why? Because there is a severe problem with the FM. That's the point of this thread by the way.

You can try and match the weight exactly in game, then do the testing and share the results with us.