Hmmm. I find it interesting to see that somehow I forgot to replace the original cs727200.air with the modified one provided. I'll have to put that in there and redo my tests. I just can't believe that I somehow skipped that. :(

Aside from that, using the original air file the 727-200 performed very well, provided it was not overweight.

I shall try again with the correct air file and let you know how I do.