Honestly, map 4 on the EX is still very exciting! You will probably still be in map 1/2 for offroad use. I tend to use map 3 on the supermoto for street use, map 4 is just for grin factor
I agree. The only place I use map 4 on the EX is for its motor braking on steep descends. For power, I don't really see how it can be useful, except for the occasion tire spin burnout or something.