No offence, but this is extremely bad. Terrible against any sort of hugger or close range mech, and even if it was at the right range, it wouldn't do enough damage or drain to be competitive. Scrap the idea.
With the addition of the Massive Feet, the Boots are outclassed heavily in every way. Since boots are heavier should they be given the resistance the Massive feet have, while Massive feet retain the resistance drain?