Mks 13'6"
is a great rod. RIO does not yet have a line recommendation for this rod. I have used the belly section of the 9/10/11 WC (tip 2 removed) and 15 foot tips. I have also used it with tips and a compensator. This combination is a little long for best casting, but I have not cut up a compensator yet. I have also used it with the 450 Skagit, the AirFlo 7/8 Skagit and the 550 Skagit. The Skagits should have an added 5' section for best casting with a 15' tip. The 9/10/11 WC with floating tip is very pleasant for floating line work.
I have not had the opportunity to use the CND rod yet, so cannot comment on lines that work well with it.