I mean this isn't official cause I'm not staff but I look at it this way: Why are you trying to do that?
Because you're holding another weapon in your other hand? Probably not okay since bows are supposed to be two hands.
Because you are trying to reload faster? I have less of a problem with that because it's HARD to fight with bows only.
Because you don't have a hand or your hand is injured? Absolutely, sure, whatever, you do what you have to do.
I'm really confused as to why you'd want to do that regularly, since pulling a bowstring with your teeth is difficult and your teeth aren't really meant to do that. Also snapping elastic that close to my face? Nope nope nope! That's like asking to have it some how snap your face. I'm not sure how it would do it but I haven't had the best luck lately so I'm not gonna try that.
I'm much more interested in that technique where you hold multiple arrows between each finger and rapid fire them but it only works with some bows.
I love the Zing bows. They're so cool. Tough to notch the arrows but I practiced for a few weeks and got it down to a system, you hook the bottom hook first and then grab the top one. At least that's how I do it. But like I said, it's tougher. They almost always fly exactly where I want them though which is great. And the arrows are durable.
I also like the nerf bows, with the arrows. The one I have right now (already prepped for game though it needs some touch up after ballad) is the rebelle Arrow Revolution one that has the cartridge, which I removed and threw in the garbage. Because the cartridge is junk. I like it because you can load your arrows from the side, a feature that is oft overlooked and much needed in the other bows. The problem is that it's tough to notch the arrow just right so you don't send it off into space. There's two reasons for that: The guide on the string doesn't really force you to notch it in the right place, and even if you're on the guide lines, the arrow's so long that it's easy to angle it weird and get a bad shot. You have to practice a lot, and if the arrows get damaged you might still get weird spin. And they're easy to damage because of how thin they are.
There's a crossbow coming out that uses the nerf arrows and I think it will fix some of the problems but take a long time to load. And there's a nerf bow coming out with thick arrows and a lot of solutions to the aiming problem. But it's a trade off still because the thicker arrows are tough to carry a lot of. I'm going to need a quiver that takes up basically my whole back for that bow.
SO I'm torn on what the best bow is going to be. Maybe in the end it's the little one that shoots nerf darts, I mean that one is pretty damn simple to use and it just shoots where you aim it. I really want to have a fight day just so I can test out bows in a fight again. I tried at ballad and found it was really easy to get run down by people with swords. Though mostly that happened when I wasn't with a group or I was tired from running in boots, or I stopped to loot a body. Food for thought.