I started watching the vid and had to stop. what a load of twaddle. Back quivers are useless? Um, I used to hunt a lot, you don't run around when hunting, you stalk, slowly and silently. Back quivers work just fine. North American natives used them - sometimes with covers.
The 'fast draw and loose' is very clever, very impressive, but he isn't doing a full draw. Those arrows would not have the momentum to penetrate medium to large game and certainly not heavy clothing (let alone armour).
Anyone who has shot a heavy-poundage bow knows that the biometrics of the human body mean it is easier (for right-handed archer) to draw with the top of the bow canted to the right. Ergo (disregarding mechanics of the release), you need the arrow on the left of the bow.
The last american indian living 'wild' was a Yahi from california called Ishi. (died around 1914) He used bows which had a pull of around 60lb I think and he used thumb draw which was pretty rare over this side and he also fired with the arrow on the right side of the bow. And like many natives americans and canadians the bow was often held at an angle unlike the pictures I've seen of guys firing longbows.
wadji!