Long term genie user here!
I think that the weights are a little off with the wing back support role, it appears to be placing no weight on crossing compared to other attributes, whereas crossing is quite important for a wingback support, at least according to the game.
On a side note, a feature request: Let us alter our own weights also for roles rather than just positions?
Also, would it be an idea just to remove player values from the game? They haven't been accurate for a long time and it would be better just to remove them.