I bought size 6 and 7 Knit Picks circulars (16") and I just started using the size 7s the other day. I
them. Nice and lightweight, I love the points, and the cable is so flexible.
I had used a pair of size 8 16" addis for the HP Gryfinndor scarf and thought nothing could top those. But I like these better, mostly for the more flexible cable.
I'm going to save up to buy some options.
I don't know if I want to buy the set--there are some sizes (11 and up) that I just never use.