Weighted Balls Effect on Velocity (Baseball)

For this experiment, I will either partner with Driveline or conduct my research alone. I plan of measuring the effects of throwing with weighted balls for a period of time. The subject, me, would be placed on a plan to throw weighted balls (3, 4, 6, 7, 9, 11 oz.) out to a certain distance before switching to regular baseballs (5 oz.) and then throw a set amount of throws at a very high intensity. My second subject would be on the same plan, except the difference would be that he would not use weighted balls–only baseballs. We would take velocity measurements from pull-downs both before and after our experiment.