Hi Charles
I think that when we looked at the times of the tidal gates around the Swellies/Port Lynas/Cartmel Head and Caenarfon Bar/South Stack there was not that much in it from going from PD clockwise or anti clockwise. Possibly slightly longer going anti clockwise but not much.
Its going to be a long day either way.
If the wind is SW its going to be abaft the port beam up to Port Lyndas and off the port bow around the top.
However the tide will be with us.
Its all going to be dependent upon the weather. Anglesey is a notorious place for weather changes. Ive sailed the swellies a couple of times from Beaumaris to Caenarfon and back but I do not have much experience around the rest of the Island.
Historically its the tides that have put us off the Welsh coast as once you are out generally you have to be out most of the day. This is why we have spent much time in Scotland, especially when the children were younger.
I think whether we go clockwise or anti clockwise will be a decision made on the day. Ive teed up my crew (my son Simeon) for a long day either way!
Regards
Simon