Here's a "Hmmmmm!" thought for you.

[joe_oppenheimer]

In the scenario I referenced the mech units all have movement rates of either six or eight. Changing the base rate for clear means they'd move either three or four clear hexes per turn. With the rules as written they move two or three hexes per turn. To me, that would have a significant impact on what was designed as a slowly unfolding scenario.