Bit Question?

Some horses just play with the bit. Both my horses so it with any bit. Maybe try a training fork to help the him with the head tossing... Don't use it all the time because it's an aid and theuly will start relying on it.

Unless he's gaping you are just going to have to work around the head throwing

Some time D ring bits have straight bars, causing a real V shape which some horses don't, try a mullen mouth, or half moon shape either with or without a joint. Also try something other than a stainless steel material? Try him in just a halter, does his still throw his head? If he does the discomfort may not be in his mouth at all.....

I would try a copper bit (or sweet iron). My mare played with the bit relentlessly until I got her a copper roller bit. I now use a sweet iron bit on her and she's still fine. Both promote salivation.

Many horses do this who are struggling with their nerves. I think of it like a person who jiggles their foot or taps their fingers. It's just a bit of nerves. I would ignore it. My horses do it too especially early in the season or if they are in an enviroment that is "getting to them". It's just a sign of how they are feeling. I would not be worried or try to reprimand your horse for this or push him to stop. He may blow up in other more serious ways instead. Just be supportive and be thankful you know this little trait of his that cues you into him.

Possibly a thinner bit might help, but this will also be harsher. A thin jointed D.

Or something with a roller or spinny parts he can play with.

https://youtu.be/xTgoeDAqdFk

That's the link to the video

Here's the video of what he does. I can answer any questions you have. If it helps he's a 10 year old Appaloosa

Keep it simple, your answer is showing up in notifications however I can't see it on the post.