No Skippy.
The airfields pose no performance penalties whatsoever. So what is the crux, thrust or point of the case you are trying to make?
Occasionally the B757 can make it direct GLA-MCO/SFB non-stop subject to headwinds & loads. More often than not the B757 can make it SFB/MCO-GLA non-stop with a heavier payload because of stronger tailwind components. Capiche?
