There seems to be a problem in powerscaling materials and weapons, and that would the particle order. Say if a weapon destroys a material, then is destroyed itself after switching the weapon and material particle order, who really is the winner? 

So if a device destroys another device in both particle orders (First or last) it is the winner. 

For ties, say if device1 can destroy 60% of device2 faster, first in particle order than device2 can destroy 60% of device1, first in particle order, then device1 is stronger.  If that ties then the devices are equally powerful.