Does anyone have these needles? I'd order the Harmony set but I'm concerned they would be too slippery for much of the yarn I use and how I knit. I really like the non-slipperyness (I think I just made up a word!) of bamboo. My concern with this set is the cable - are they flexible, thin? I have Denise interchangeables and really like them for a lot of things but I do think the cord is a tad too thick.