[Chris86]

We didn't actually test out flywheels on my team, but I would think that flywheels would improve consistency. One of the problems with stiffer balls is that they require more energy to compress and thus slow down your shooter much more - taking energy that is not really going towards speeding up the ball. Flywheels, as was said previously, cause your shooter to maintain its speed better when it is transferring its energy to a ball. By maintaining wheel speed, you ensure that "stiffer" and "squishier" balls exit closer to the same speed.

That being said, sizes and weights of flywheels for this purpose would require testing and data. Soooo I guess you either need to try out some flywheels yourself or hope that somebody comes along with the data instead of using general conceptual analysis of the problem.