I have had her in a copper snaffle tom-thumb for the last 3 years, and she has finally figured out how to work around it. She began pushing right through, pulling the reins into her mouth with her lower lip and yanking the rein away from me, etc so I decided to try something different. I just recently put her in a curb bit (very low curb) and she took to it AMAZING. She is much more responsive, and is that much closer to being finished.
I wanted to get a few opinions though...since I am starting her training in Reining, what is a suggested bit to use? She has a very soft mouth and I have a very light hand, so the curb may be a bit harsh but it is working great for both of us since it is being worked with correctly. I've seen professionals use all different bits from the normal tom-thumb to very fancy high curb bits. I was just wondering what everyday people/trainers think about what would be a good bit to use, and if it is alright to train into reining with the bit I have on her now since she is doing so well. Anything helps, thank you so much!
Here is a picture of the bit I have her in now:
Roller Curb Bit
And here are a few pics of bits that I have seen others using: