I see that. If you keep the skills together, you don't have negative elastic effect, but you also don't profit from any skill that is higher (I know that in order to get to that higher skill, you have to take into account negative EE).
driving/handling, maybe training first could help the general training speed.
That's exactly what I'm promoting (for guards and forwards, not for centers): 1 on 1 for forwards is the way to generate elastic effect.