For this patch I have only tested the 4 lights and 4 assaults against each other and the only thing I thought was needed is some damage boost for the Pelistals (I chose to change the missile cycle bonus from 1% to 3% for both the Castel and the Waspish), and a slight nerf for the Prometheus' armor (850 to 800).
As mentioned in the blog speed will be looked at a bit later, but changing around the armor resistances like you suggest is worth considering.
You think you're doing robot balance, i understand, but i saw you only make robots useless most the times. Check, play the game.