I generally do my workout with ten pounders, even when Jillian says to use the lighter ones. However, when I did workout eight today, I made the mistake of not listening when she specifically said use the three pound weights. Circuit three nearly killed me! The delta raises in crescent pose was okay but I couldn't even begin to go into the warrior three pose. I moved down to the eights, but even then it was hard and I had to move to the fives. It was a real kick in the butt that I still have a way to go.