Thanks for
all the comments!
I am using 1 circular knitting needle. My beginning round is on the side of the sock.
1st chart - 10 stitches of k2, p2, cable, and then ends with 14 stitches of k2, p2 (34 front and 34 back stitches). Cable is on the front and back is simply stockinette. The Cable pattern begins and ends narrow but is wide in the center.
I will use graph paper to reposition the chart over the appropriate rib stitches.