[hcw]

OK... would not a 100 lb. golfing machine(Iron Byron type device, Pingman, etc.) hit the ball further than a 6 ounce machine(that's more than twice the weight of the ball), with all other factors being equal?

The momentum(mass in motion) is transferring from the machine, into the clubhead, into the ball.
-hcw

if the 6 oz machine can swing the same club, with the same acceleration, with the same impact parameters (ie hits the exact same spot on the ball with exact same spot on the clubhead) as the 100 lb machine, then i think the ball will go the same distance, all other factors (eg wind, ball elasticity) being equal