Thanks Jackie!
Right now his curb chain is just a leather strap (we used to have to wrap his pelham chain for ASB hunter classes with sealtex) and this is the curb we tried yesterday - https://www.chicksaddlery.com/professional-choice-feather-shank-straight-roller-bit-525-mouthpiece?utm_source=google&utm_medium=cpc&utm_campaign=google&utm_source=google&utm_medium=cpc&adpos=&scid=scplpFS0687&sc_intid=FS0687&gad_source=1&gclid=CjwKCAjwrIixBhBbEiwACEqDJcQmi4o1uiTViCiz-Zb-COEEgQoQTH12sYFbrnMfSnAIg7zJY3M-nxoCHnkQAvD_BwE
He loves mullen mouths with rollers so we tried that first. I don’t need that much poll pressure though, so we have a few more we can try. I don’t have as huge a cache of western curb bits as I do snaffles but I do have some in my arsenal, as well as some portugese and spanish doma vaquera bits. 
We’ve got 'em all!
I haven’t tried him in a bit with rein chains - we were working up to those on the bridle horse side - he was in a bosal about ready to move into the two rein, but they would be highly unusual for the ASB classes. But that may be more because of what the ASB Trainers are used to. Maybe we’ll flout some tradition and that will be ok.
They don’t mention the bosalita - https://www.usef.org/forms-pubs/MpyUsxb_liI/sb-american-half-american but the regular ranch rules appear to allow them: https://www.usef.org/forms-pubs/nF4VN3XMqmc/ws-western-division which is apparently what we are really under?
I’d love to be able to show him in the two rein.
Again - I don’t really care about placings so much as just not being so out of place or against the rules that they kick us out of the ring.
