Okay, here's the stuff I got (at top) compared to Midwest Products.
It's much more coarse than the Midwest so it breaks and crumbles easier. But it also cuts and bends easier.
A rudimentary tap test makes it seam like it might be a bit quieter, but we'll see.
If anyone else is interested, it's this stuff:
http://www.lumberliquidators.com/catalog/product.jsp?productId=5901At 1/10th the price of Midwest, it might be worth looking at.
Jason