All you did was wreck your horses. You don't have a clue about how to train. You might get results with those methods, but you ruin the animals- especially by cutting the horses mouth up. That's the last thing you want to do. The horse gets scar tissue and then you have no control at all with the bit.
GO HERE
and learn about training a horse from a real cowboy/horseman.
I highly recommend this man's books too anyone interested. He has some interesting methods of training. Companies have even used his theories in managing employees too.
Monty's OK.... I think there are a lot of valuable lessons from watching his round pen work. I was a little disappointed with some of his corrective lessons, because I only saw them performed on horses that were already pretty darned obedient, but he has a quiet confidence that I think goes a long way with horses.