It is situational. Holding your joints can be very useful for stopping your momentum when moving in a direction that you don't want to. It often provides you with a stable position faster than when relaxed which can massively help you when trying to fling yourself back into the fight.
Hold all? Relax all?
I think goatse is the best option. Instead of grabbing the legs to gain some momentum of the flux condenser, I charge my electron capacitor and then let my hand go inside of my arms and then when the opponent is thinking, "Oh god, his laser array of sub-platonic compulsion powers have drastically changed and so I think I might fall to the ground now to avoid being vaporized by his wave particle duality move."
Hold all? Relax all?
I think goatse is the best option. Instead of grabbing the legs to gain some momentum of the flux condenser, I charge my electron capacitor and then let my hand go inside of my arms and then when the opponent is thinking, "Oh god, his laser array of sub-platonic compulsion powers have drastically changed and so I think I might fall to the ground now to avoid being vaporized by his wave particle duality move."