Well well I see some more people are seeing the light on the tom thumb bits , I personally don't and will not use one but some people swear by them , Im always trying new bits to see what will work with my group of ponys , and so I have a bunch of them . And the very strange thing is I will try them but never ride in them, Since I have been useing hackmores and for the last few years have been rideing all my horses with a bitless system , I just can't make my self put that steel in there mouths to ride with . But all my horses are started with a bit usually a snaffle of the least harshness I can find . I do that so if I sell a horse to someone then they are use to a bit as well as bitless . All horses are not the easiest to train to ride with out a bit , My T W H mare is a big thing for me to work with out a bit because a lot of her cues to move out were taught to her with a long shank walking horse bit and I have a dilley of a time getting her to do what I need her to do with out a bit , she gets very mareish about it and I get to sweating trying to get her in to her gaits with out a bit at all . Somedays when she is feeling real perky it can be a very wild ride but I think she is starting to understand my way of going now with out the bit .