Yup..all that is true. Simply put, if it's 87 degrees/f with dew pt at about 84 degrees, Leesburg Airport is now at just about 2400 ft.
But I still say it's gonna be a mite expensive to fly commercial out of there as compared to MCO. If you build it..will they come?

Good place for corporate jets though. Although, I aways thought Orlando Executive was the place for them.