The Sun must change speed in the FE model. The Sun changes latitude through out the year in FE. In the FE model, no two longitudes are the same. The Sun makes little circles (longitudinal passes) on North latitudes, and longer circles on Southern latitudes. No matter where it is in the year, the Sun must make it around once a day; that means slower on North latitudes in the Summer, and faster on Southern latitude paths in the Winter.
This would also give the equatorial regions noticeable, but mild, changes in season, daylight, and meridian which they are not known for.
The Southern part of the Earth would have the most extreme seasons, changes in daylight, and meridian. The Southern regions would have vast differences in culture, agriculture, and weather in stead of being the mirror image of the North. However, they can grow the same crops and have similar weather and seasons.
Another effect we don't see is global convection matching the FE model. In the FE model, the Northern region would be the warmer, and smaller of the two; and the Southern region would be cooler and larger. The Earth would have one large upward convection current (like a Solar granule) centered on the North pole that would rise up to the top of the "dome", spread outward in all directions, cool and fall back down to the ice wall, and then be drawn back toward the warm equatorial region to start again.