I've got a wholesale account with a Knit Pro distributor so when I ordered some new workshop needles recently I decided to get a few circular needles to try out. I got 2.5mm, 3.5mm and 4mm fixed circular needles in 80cm length, which is my favourite length.
I'm using the 2.5mm circulars for Simon's socks which I'm knitting two at a time from the top down. (By the way, I'm teaching 'Two socks at a time, top down' at Artesano and Spin A Yarn in 2016.
I knitted a new shawl (pattern coming in February) on the 4mm circulars and I really liked using these needles for the socks and the shawl. The joins are smooth, they're light, slick but not too slippery and the cables don't kink too much. I'm currently knitting my new Crescent Bay shawl with the 4mm Zing circulars (are you joining our Crescent Bay KAL? Details here).
I knitted half of a new fine lace shawl in the 3.5mm needles but I changed halfway through. This yarn is very fine and for such fine lace I really prefer pointier needles. My only problem with the Zing circulars are that the points are a little bit blunt. I changed to my regular Chiagoo circulars which are definitely pointier.
Overall I like these needles and they come in a variety of circulars, straight and double pointed needles. They're great overall needles at a good price and the best thing about them is that each size is a different colour so it's easy to grab the correct size. Below is a photo of the Zing 4mm compared to a Chiaogoo 4mm. The Chiaogoo is slightly pointier and the tip is more tapered which makes a difference when knitting fine lace.
I will definitely be getting some more of these and I may get some for workshops when I place my next order. Have you tried the Zing needles? What do you think of them? Tell me in the comments.