Happy New Year Umberto,
I don't doubt what you say, and that is what makes it such a mystery.
Before I had your KORD airport, I was using an old Simflyers version. When I bought yours, I removed the Simflyers from my scenery.cfg file, then removed the scenery and afcad file for it. Next, I installed your KORD and replicated the afcad file parking spot by parking spot, per say - using the exact same values in from the Simflyers afacd. Result - Simflyers 100%, FSDT about 75%. Same with The "old" KLAX vs. the new.
And come to think of it, the same with KFLL.
Every other AFCAD file I design is 100% accurate, so it's driving me crazy why I can't pinpoint what causes the partially inaccurate behavior with the three airports from here.
Again, not pointing fingers, but there is something odd, but not at all obvious.
Best wishes,
Neil