Seems like this issue for me is somewhat resolved with now several flights going back and forth! Either Su14 has higher SimObject limitation, better SimConnect or the issue is somewhat resolved by GSX and them deleting object when the plane is above 10,000 feet. However, there is still significant stutters on FPS reduction upon arrival at the original airport (return leg)! Hope Asobo/MSFT can determine what causes this issue and come up with a solution.