The 109E slats do not extend far enough outboard. They should reach the wing tips (as 109E slats do in real life) but the ones on the 109E 3D model stop a good 1.5 to 2 feet from the wingtip.
Depending on how the slats' effect is computed, and whether or not it is based on the 3D model, this may affect the FM as well. This may affect how much area the slats have, and consequently how much they help, when they are deployed in flight (meaning with slats that reach to the wingtip, the 109E should have better low-speed handling than the 3D model with the shorter slats may have)
