Josey Barrel

Bit for a barrel horse?
My barrel horse is a really hard runner, and I'm starting him on poles and want a bit with a little more rate and/or control.
He can be ridden in a snaffle, but is always run in a Martha Josey competition bit.
I'm no bit expert, and don't really know if any of these bits would be right for my horse.
I don't mind running him in a harsher bit because I know I'm soft with my hands, and whenever we aren't running a pattern full out we are riding in a snaffle bit.
So please just give me your opinion on these bits!
Thanks in advance.
http://www.valleyvet.com/ct_detail.html?pgguid=339eb00b-9f0e-41b2-8564-fe02f037a2de
http://www.horse.com/products/gift-0__sku-WBA53.html
http://www.horse.com/products/sku-WBF92.html
those are really harsh bits.
Probably the least harsh out of all of them is the last one.
I love nosebands on bits, use them for training on the greenies, but never a metal one.
I hate short shanks, I would rather see you on the 3rd one with no shanks than the nutcracker effect of the other 2.
A Visit With Martha Josey
Help me pick a bit for my horse?
My mare is 6 yrs old, and I was wondering what would be the best first shank bit for her.
She is a barrel horse, and currently I ride her in Martha Josey's O-Ring combination bit(it has a mullen mouthpiece), and she responds really well to it, because she is a light-mouthed horse. I want to start showing my mare in reining classes through 4-H, and I am required to use a bit with shanks. What is a gentle bit that has shanks?, because I have never rode her with a shanked bit. Should I get a solid or broken mouthpiece?
solid mouthpieces are better in my opinion, but use whatever u trained ur horse with because that will be best
