Dan,
I too throw the ball faster than a locomotive, but to be honest, it slowed me down a bit. With a pushaway, I was very herky-jerky. I would push, then pull, then throw down, then release. With this technique, I feel much more fluent and relaxed. It actually slowed my ball speed down, increased my ball length, and my entry angle. The reaction I am getting out of the ball is incredible.
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Use the force and join the Nation. Gotta love that tag line.