I cast on with 72 sts of a tubular in-the-round cast-on (youtube) on 2.5 mm needles and not start knitting tbl until the next row of ribbing (on 2.25 needles), i.e. row 2 of the ribbing.
Thumb in the same place as Nereid, increasing to 19 sts (instead of 17 sts for my chunky thumbs) before putting thumb sts on waste yarn and completing this 22 row repeat and casting off (tubular). Picked up 8 sts to complete thumb with. Purled first of reserved sts together with last of picked up sys to make an even number of sts for the twisted rib. 7 rows and then cast off (tubular).