My horse is 17 yrs old, a former jumper/eventer retired as a dressage horse as of 3 years ago. He has a low palate/thick tongue and has always been very light in the mouth, to the point of tossing off fussy-handed riders (he’s a saint if he likes the way you ride). Fortunately he’s compact & uphill and has his own balance, so he doesn’t need a strong contact, and he can be ridden in just a halter using only leg & seat. For training purposes, though, I of course need a bit.
He recently developed the habit of sticking his tongue out when he has a bit in his mouth. He does it as soon as he is bridled. Dental & soundness issues are being addressed, although I recently moved & I’ve yet to find a dentist who does not make things worse by overdoing it with power tools.
KK Ultra B-ring: switched him to this a few years ago when we began dressage, and he loved it. tongue sticks out just barely, only visible up close. He can get btv with barely any contact so the connection is rather ephemeral sometimes.
Sprenger Dynamic RS loose ring: This bit gave me the ability to use more precise aids because he did not go behind the vertical every time I touched the bit, but his tongue sticks halfway out of his mouth sometimes! I’ve walked up to him after lungeing and opened his mouth to look at what he’s doing, and a lot of tongue is sandwiched in between his upper & lower teeth. If that’s a relief from the bit, the bit has to be pretty uncomfortable. I was told it was supposed to be a 1/4" smaller than his normal size but I didn’t know that until after I bought it, so maybe it’s too big?
I’ve used no noseband, a figure eight, and a standard noseband (nosebands loose enough he can eat a sugar cube) and it is the worst without a noseband, which used to be his favorite.
I have a feeling that he does not like any tongue pressure, but I don’t know why this is just happening now and never before. I want to try a bit with minimal tongue pressure and see if there’s any improvement. He likes a thin bit, 14 or 16mm, never tried a single jointed, always a lozenge. He hates hollow mouths (or anything 18mm+), happy mouths, and mullen mouths (too thick), although I haven’t tried one with a port. I don’t show so it doesn’t have to be legal. Maybe a JP french link baucher?
Thanks in advance for any suggestions.