I got some 4oz cloth from Defender a couple of years ago, it was priced 50% above 2oz, still very inexpensive, it wetted out very easily, looked like a finer thread count than the 20x24count stuff I'm used to from J.R. Sweet. The only problem is that it appeared to bruise easily and turn white compared to the 4oz from Sweet, I wonder if it had a different kind of sizing(coating), the white bruises didn't inspire confidence although that is common for fracturing glass in a matrix. I wouldn't use it again.