

Help with Stawasz doily
I'm having a little trouble making sense of the final row of the doily and was hoping somebody could provide some insight. I'm tatting with 2 shuttles and doing front side/ back side tatting.I've got a few questions:
The chains around the "G" are marked with a "x.". Does this mean to reverse the work and continue using shuttle 1 to make the chain? If I'm doing front side/ back side does that mean I use shuttle 2 as the core thread and tatt in reverse order? (Which would technically mean normal order without transferring the knot? ) Would shuttle 2 be used for the ring now?
At the beginning of the final round it appears the chain is marked as 5 stitches in blue, then it looks like the chain is marked as 4 stitches in red. Should there be alternating lengths of chain, or am I misreading the pattern?
Thank you for any help!