My Team, 3042, was intent on increasing the momentum of the flywheel after we found that coulson wheels decrease momentum. Brass flywheels may be helpful, but steel ones were very effective in increasing the momentum, but the negative is that the time it takes to run up and get the flywheel up to speed is increased, but by an average of half-a-second more. This when increases speed and distance consistency, increasing shooting consistency and shooting accuracy.