Hi EF
Glad we are have an understanding regarding the jokes 
Covering is something I thought Bagua guys did too (shielding… in as much as you practise breaking down a shield), though I guess I’m wrong.
I don’t see it as a wasted movement (I see it as a pre-emptive one) and I don’t see it as dangerous… (I see it as safe).
One of Yip Man’s students, Duncan Leung, once described ‘covering’ as:
"When you see an attack coming at you and you react to stop the attack, that is blocking. When you feel there is a space around you open for a possible attack and you shield it off even if there is nothing coming, that is covering.
"Blocking is always one step behind your opponent because your opponent initiates the attack first and covering is one step ahead of your opponent because you are already in the space that he can possibly attack.
“For example, in fighting, when I throw a punch with my lead hand and someone does a pak sau on my outside arm (or snaps my arm down) instead of fighting against the force as in blocking I will let my forearm go down with him and my elbow will rise up to become a bon sau and jam forward as a first defense. With my other arm, automatically I will cover my open area with a tan sau behind the bon sau as the secondary defense (cover). In other words you have two covers. I am covering the space that I could possibly get hit (the upper part of my body). Because he is knocking my hand down he is not going to hit me low. If he knocks my hand down and does punch me my arm will stop his attacking hand and if he does not punch, my hand is there covering the space anyway. All this training is basically from chi sau.”
So, in my opinion EvolutionFist… if I cover I help protect my gates by closing down potential attacking angles. Those same angles are also often present in reverse (i.e. I can also attack along the same line). By covering I not only protect vulnerable points, I also have my hands in a better position to attack from.
But hey! I try and make my WC as simple, direct and efficient as possible… so I hope I’m not adding too many wasted movements.
I will turn off my automatic response to innuendo :), and say that I want to be both hard and soft. Relaxed in order to be pliable, and have energy with split-second tension at the moment my attack makes contact. But maybe that’s not what you meant 