I was just at the Western website and they recommend 600lb for ballast with my 8.5 Pro Blade. What does everyone do for ballast in the winter? My wife and I were looking for ideas of free things to toss in. We went to a local rock area where they grind up road concrete, the operator there would drop half a bucket of rocky gravel in for 5 bucks(baseball size). Then the wife asked what we were going to do about that in the spring? Then walking in Home Depot we were in the stone/brick area then the light turned on. I talked with the fella in the stone area he said there was a 4 day order time for bricks. They came on a wood pallatt. I figured the weight of one of those .29cent bricks at near 5lb each. That means I spend about 30-40$ and get a load of bricks wrapped and strapped to a pallate in the back of my truck with a forklift. In the spring I bring my reciept back along with the bricks...and wait till next winter!