First I had a shanked Myler comfort snaffle that worked pretty good until she found out if she threw her head up I had zero control as nothing was in her mouth then. It has no break in the mouth piece and is a level 1 so no port either.
Second I tried an oval link loose ring snaffle. Works very very well for round pen work and is currently what is used with her side reins. This bit also works ok with strictly arena work. But out in the open she completely ignores this bit, no turn and the worst is absolutely no stop at all. I do not like jumping off on the side of a very busy highway because my horse is going all nuts.
Third, and my current riding bit, is an argentine snaffle I believe. It has about 5 in curved shanks with a regular single break in the mouth piece. This is so far the only thing that gets any stop.
She is still very barn sour and honestly after almost 8 months I am not sure this is going to get any better. I just want more stop. The arenas I use are not on barn property but adjacent to it. She will throw her head up when she wants to go back to the barn and with the third bit with quite a bit of pressure she will put her head down and then stop. But here's the problem, I do not want to have to put hardly any pressure on her to stop. I sit deep and back in the saddle with a whoa but if she can see her barn it's pretty much hopeless. Anywhere else she will stop fairly quickly, but she is very headstrong and sometimes still doesn't want to stop.
So help me out with some ideas on how to fix this stop issue. I would really like her to work in a regular snaffle eventually. We have made tremendous accomplishments in the last two days with turning, I barely have to use the reins. So I know this can be done, I'm just at a loss as to how to get her to stop.
I should add this does not appear to be a pain issue as all three bits get an almost perfect response in the round pen, where she cannot run away. She loves to go, go, go, she's an arab afterall.
Circles do not help. The smaller the circle the faster she goes and the lighter her front end becomes. This horse has amazing flex and can actually maintain a canter in roughly a 10 foot circle
We have been working on walking and walking only, especially when others are working faster. This really agitates her but by doing different patterns in the arena her focus come back to me for a bit.