Hi Guys,
Platboom in the "pool" (just past the surf spot) is the best spot on the Atlantic to get in in a big swell and still scratch a dive. Plenty of gallies there at times, but quite tricky in the shallow water. Sunday morning looks like your best chance, after low can also give you better vis as the outside rocks protect the "lagoon" area more on the low tide.
Looking at the swell off Noordhoek this afternoon, though, it has to calm down a lot before you will be able to get in.
Cheers,
Tony