OK i was wondering if anyone has tried this before. I bought a grasshopper zero turn mower a few mths ago love it, and it did great on the hills untill I put the vaccume/bagger system on it. Even w/ the counter weights on to much of the weight is on the rear wheels, and not the drive wheels causing lose of traction on hills. So here is what I was thinking of doing. If I fill the drive tires w/ water/antifrees should that give the extra weight on them to give me better traction on the hills hopefully putting more weight on the drive wheels? As of now I have to back up hills to keep from tearing up peoples lawns.