My gelding has a very narrow mouth and short lips.
Sometimes his tongue gets pulled back behind the bit. Not as an evasion, and he sorts himself out, but I can’t help but think it means he is uncomfortable with the bit.
I had been riding him in a 4.25" Metlab loose ring snaffle, but he wasn’t happy with that, so I switched to a 4.75" Myler comfort Mouth. I couldn’t find a narrower one in Canada. he goes ok in the bit, but does have an issue with his tongue at the canter…and I don’t like using that much too wide a bit as it is harder to keep centered.
I cannot find a bit rental program with 4.25" bits in Canada.
Any advice on a bit that short lipped horses carry comfortably?