And where should he find the 16kg necessary for Hypnos ? Mags won't be overkill with 1 grip value wheels and he just needs 10 kg to get them.Anyways, the havoks most likely come from the long skirt hinge wedge.
The wheels on G.F. are incredibly exposed. Get rid of the typhoon spikes cause they have normals. You can make the chassis a bit smaller and drop the tit skirts for alu ones.