From looking at it, the decision making behind this very successful forced landing is worthy of a Case Study in HF and flight safety courses. From the videos it looks like Chris traded energy for height, bought time, made the decision not to step overboard (lack height probably helped...) flew the aeroplane, thought about the gear, got her down and then, it seems, retracted the gear when he felt the RH leg go, mindful of the tendency to ground loop and nose over (hence JBs decision to jump years back with one leg stuck...). All with adrenaline running. Brilliant airmanship - BZ indeed!