Chewing on the bit... all the time!!
My 8 year old TB gelding chews on the bit almost immediately when I put his bridle on. We event at BN and he does this all the time, even when we are just hacking out an a sunny Sunday. I've had him in a loose ring French snaffle and then switched to an egg butt. I've tightened, loosened and even changed from a 5 and a half to a 5 and a quarter. He is a good horse, obedient, willing, responsive not anxious or nervous. I don't know if he does this out of boredom or what.
Is this a problem or should I just except who he is... a bit chewer?