So, I have used this type of bit driving my horse for several years.
Just a basic medium port Kimberwick. We took a few years off driving, but now that we are driving again, he is not happy with the bit.
About two years ago I switched him, under saddle, to a medium port with a copper roller - which he LOVES.
But now, when I hitch him up, I can feel him workign the bit looking for the roller. He is not doing anything bad, he just wants his copper roller back.
Do they make Kimberwicks with a copper roller that are not broken mouth pieces? This is the closest I have been able to find. My horse hasn't had a broken mouth piece in his mouth in 12 years.
Or if I really want to keep my medium port - which I do, I can get copper, but the mouth piece is broken and no roller.
Any suggestions? He is really unhappy without the roller, but he has never gone well in any sort of snaffle. - I need to add that I am open to switching to different shanks, like a pelham, etc, but I don't need tons of leverage.