just my 2 cents. Paul is right on with the training fork. alot of good advice here. Just remember the pull you need with a snaffle comes from below the horn of your saddle and the with your hands are apart. Think about where your going and use your upper body to give your colt some feel and direction. You want him to flex at the 5th vertebra not at the poll this will keep him rounded up instead of holllowing his back out .
Now we talkin'...
I disagree however...
... how a horse breaks up front has less to do with the direction of pull than the timing of release... I can ride with my hands/reigns above my head and round a colt up like a bowling ball
I don't care what vertebrae he breaks at as long as he's soft in the face to I can drive his ass into it...
... Collection is my specialty...