I will be most interested to know what you think of the Peewee bit. I bought one online and used it for a bit but my horse didn't like the tongue pressure. He was used to a single snaffle, which I think may have more bar pressure. Also, I ordered the medium (or "horse" size) and I think it is too big to have the kind of pressure on the side of the jaw that they tout as the big reason the bit is successful.
Be sure to watch the video explaining how to put it on the bridle as it is important to do it right and it's not self explanatory.