It isn't about the sharp points, smooth join or strong cable.
Another view: (That's a 24" Addi circling the sock.)
It's the size.
I've knit socks on dpns, two circulars and magic loop. Never really felt totally comfortable with any of them. Knitting with dpns is like wrestling with a porcupine. Two circs--hated the dangly ends. Magic loop--I never was one for Mickey Mouse ears.
That's a size 1/9" Hiya Hiya needle. Cast on 68 stitches--on that one needle-- and away we go! Not having to shift and adjust needles, the knitting is so fast.
And that teeny, tiny needle is just so darn cute!
So far, so good. Surprisingly, my hands aren't cramping. And I feel like such a speed-demon!