I think the system is fine. I however think the skills you can get are the problem. As there is almost nothing that bypasses the different armors, not even taunt, wich makes it the most useless skill in the game. Frankly i think the best way to improve this system, wich i like btw. Is to tweak or add some skills that can bypass it, and do something except armor. Taunt f.ex, needs to just get fixed so it bypasses armor. There is no point to it otherwise, as just using a knockdown skill is superior ALWAYS when armor is gone.