I've tried a few different bits with Chili and none have had the same response as the one her prev owner used - Jr Cowhorse with snaffle (don't ask, I just know what it looks like!) I've been using a very old, very rough bosal with her the last few times I've ridden and she does MUCH better.
I had to delete the reins that were attached to it bc they were beyond usable. In fact, they were practically beyond untying - so, I simply cut them close to where they loop and hooked my nylon reins (clip ends) into the braided area that I'd left.
And it works. But then I laid awake the other night wondering if I was doing something wrong -gut feelin'? And tonight, I went to toss the reins over Chili's head and they were criss crossed. My first thought was, poop, gotta fix that, but then a lighbulb went off in my head... Perhaps the reins would work better that way, so I left 'em.
Whether she's doing better bc I've been riding her in it consistently or if it's due to the criscross, I dunno, but she seemed more responsive tonight.
Off to look for a new set of "real" bosal reins to go with the FUGLY bosal I have. ::sigh:: Hubby gets a $75 BIT and I get... well, I'm looking at a saddle tomorrow, so we'll see.