I skimmed over your CS and it seems to me like your Armaments have only marginally been weakened. I still feel its OP and I'm going to say that its probably the functions you don't want to change that's the cause of its Op'ness. Features that involve beam severing and nullification, the likes, should offer a horrible drawback, either battle-wise or character development-wise. 

On top of all this, you've made your battler with extremely fast reflexes. With a suit that nerfs most others, its too much in my opinion. If I may, I would compare your Gunpla to a World Classes. 

And what's the immediate effects of using the Exam system and why was it needed when you have the Trans Am? 

Just a few things I noticed personally.