I have been talking about the atmospheric model from the beginning. It does absolutely no good to conduct any performance testing without understanding the conditions.
http://forum.1cpublishing.eu/showthread.php?t=32259
Conditions are everything in aircraft performance. That fact is very much on your mind when piloting a real aircraft.
Every take off you calculate V1,V2, Vmcg, Vr, BFL and as well as acceleration checks. All are effected by density altitude.
It looks like you have found the controls to set conditions to standard. That will save time in converting performance under other than standard conditions.
Now that the atmospheric conditions are known, conclusions can be made about specific aircraft performance.