Disable MOVE RADIUS in Prefences

[Imp]

I find it handy as a rough guide for vehicles & you get the shadow overlay anyway for LOS. Do like the addition of the hot key to turn the hex grid on a& off though. My opinion this really changes the game making it look like table top miniatures. Persevere with it for a while & you become pretty good at judging ranges just like you gain the ability to know the time pretty well if you stop wearing a watch.
However the hex grid is invaluable in close quarters like woods otherwise I tend to make movement gaffs if I have dense groups.