Carl,
I don't claim to be an expert, but I seem to remember some on this site that have said that going to a heavier ball will increase speed, all things equal. The pendulum effect increases speed.
You may be correct if you are muscling the ball, though.
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Those that can do. Those that can't complain. Pimpin ain't easy, but it's mandatory.
Most things we like, we don't need. Most things we need, we don't like. Don't confuse your likes with your needs.