at the same time when you reach the arrow in m.2c (row with arrow included = from ws) bind off the 3 stockinette sts in the middle of piece on next row (from rs) and complete each side separately.
Can you repeat this sentence, but capitalize it correctly?
AT THE SAME TIME when you reach the arrow in M.2C (row with arrow included = from WS) bind off the 3 stockinette sts in the middle of piece on next row (from RS) and complete each side separately.