The Lunge (Development) and Return to Guard

I am fully relaxed.  My on-guard closes my six.
The on-guard position.
This is the part everybody gets wrong.  Extend the arm FIRST!
The arm is extended, establishing
the attack and giving protection.
I lean into the lunge so gracefully that my opponent never even notices.
The beginning of the lunge as the rear arm is lowered.
My back leg is straight, foot flat on the floor.  Back hip turned in.  Shoulders relaxed.
The lunge completes the development.
The first thing you do to recover is bend the back knee.  Otherwise you recover like Frankensteins Monster.  Errrrrr...
The beginning of the recover.
The push from the leading heel is co-coordinated
with flexing of the rear leg and raising of rear arm.
Almost done.  Remember to recover to a good on-guard.  Feet not to wide or short.
The recover almost completed.
Note sward-arm remains extended.
Oh, I'm good.  I'm really, really good.
The return to guard completed.