I am having issues with my horse and having a bit in his mouth. He is super easy to bridle. When I am on the ground/lunging/leading and applying pressure to his mouth (while on the ground) he is perfectly fine. Holds the bit well, not chomping. AS SOON as I back him, he starts pulling and mouthing the bit. He doesnt seem impatient at all, just as happy as standing, walking or trotting, gives well to pressure--but is always chewing at the bit. He isnt bored, as he will do this all the way through any exercise, as soon as I get on. His mouth has been checked by a vet--no problem there. Bit fits his mouth well. I am using a locking hinge Dee ring snaffle as we are working on his neckreining. Shoull I try an new bit? Why is he doing this. What are some exercises I could try to get him to stop this? Could this be due to a dry mouth?
A little background: he is a 5 year old green reg. Paint gelding. His previous ovner said he liked to "play" with the bit; she had him in a very long ported curb--got rid of that right away!
Heres the bit: The hinge only moves one way to relieve pressure and does not bend up for a nutt cracker effect (like a solid piece but releases quicker). It is sweet iron with copper inlay.