One other good thing is get a shocky mcshock face arm, and when they are all paralyzed, then rush em.
Sometimes you wait right until a punch is going to hit you then BAM RUSH! cause it will deflect the punches and then you get em. you get em good.
But the best, THE BEST TIME is to wait until they are attacking someone else, let em rush, let em do the damage, THEN RUSH! HAH!
I actually don't agree with any of this.
If I have Rush and I shock stun the opponent I'd rather go for the guaranteed throw follow-up. Having Rush means the opponent basically can't do anything to me (unless you're Helix I guess). I'd rather keep that match control than get an extra 200 damage immediately.
Also, if you're in a 1v1v1v1 or whatever, and you Rush someone that isn't me, I'm moving into position to punish you as soon as that Rush comes to an end. I try not to use Rush or throws in FFA or team fights until it's down to 1v1 or 2v1.