Hello,
Probably the best advice I can give is to be carefull, in fact I would give it a miss with the weather forecast for this thursday/friday, we are forecast north/north easterly winds and a canny swell. St. Abbs is a dangerous place with a sea running and wet rocks.
I find that St.Abbs fishes far better in flat and settled conditions anyway so probably best to wait till another day then you can enjoy a great time with Pollack, Codling, Coalies, Wrasse and Mackerel providing good fun.
Regards Ian