I'm about three inches into my Tie One On, a few rows past the first decrease. The main yarn I'm using on is a Rowan Classic Yarns Cashsoft DK: 57% extrafine merino, 33% microfiber, and 10% cashmere, in the mirage color. Very soft to work with, quite nice.
I think I was getting used to the 6/7 size I'm using for the ChildHood sweater. I know there isn't much difference between the 10.5 needles I used for the sari scarves and the 11s I'm using for this, but it feels like knitting with saplings, sort of a prehistoric "Me have stick. Me have string. Me knit loincloth!" thing.