ok, i threw a yellow hot piece of 8 inch by one inch square under the anyang 88 today and the numbers came out as .651 for five blows, and .405 for ten blows, this was two inch section (accross the die). Keep in mind that this machine is only two weeks old, and i just have it bolted to the 4 inch slab with a piece of 3/4 plywood underneath. This machine hits hard, scale bounces up from the floor at every blow. I need to pour a foundation because i can feel the powerloss with the 4 inch slab. James Johnson was great to deal with, and he was the deciding factor for me to buy this machine, he stands by his equipment.