I think that can still be addressed. Again, except in the case of a really problematic pilot, most any fully trained pilot can push their machine to it's admittedly low limits as far as walking and running. Sure, the Morgan Kells and Kai Allard Liaos of the world can "dance" their mechs out of the line of fire, but for any skill between 1 and 6 or so, I think the mech is the limiting factor and not the skill of the pilot. Sure, a pilot with a skill of 7 or 8 might not be able to get full evasiveness from their ride, and the Phelan Kells and Jaime Wolfs at 0/0 and below (I think either Morgan or Natasha once got a -1 in a book) need to consider some special rule from one of the "-operations" books (I don't have those books, but I suspect there's a rule in there for that somewhere for them being a piloting ace or something).