I knit one of the learning socks from New Pathways 6 months ago, but I just now got around to making a "real" pair. I am entranced with the Sidestream architecture, which increases cunningly up the foot and has a heel flap that does not require picking up stitches. I normally knit a flap heel with slipped stitches, but this one has a slipped-stitch heel turn, as well - genius. The resulting heel is very cushy. I ran extra yarn through the slipped-stitch columns on the inside of the sock for added strength (and more cushiness).
Normally I hate toe-up socks, but the figure 8 cast-on and whirlpool toe work beautifully.
The yarn is Wollmeise in colorway "pillars of fire."
I enjoyed knitting these so much that I immediately cast on for another pair!