to figure out how fast it will throw things, you can account for the weight on the two sides using this rough formula:
Weight on short side times ratio minus Weight on long side all divided by Weight on short side times ratio plus Weight on long side times acceleration of gravity. Or as a formula:
(W1 * R - W2) / (W1 * R + W2) * 32.2 feet/(s*s) = Acceleration of short side.