Bulshoek is a great dam and the Autumn bite should be kicking off. While the smallies aren't generally as big as those you will get in Clanwilliam you do have the advantage of also being able to catch largemouth there.
What you must do is throw a tiny torpedo or zara spook at the pig farm for some of the most fun you will ever have standing up. (You can't miss the pig farm, just follow your nose.)
The fish there love white crankbaits as well. You can catch some big largemouth by dropshotting along drop offs with senkos as well.
Bulshoek is also a really picturesque dam with everything from weed beds, redds, rocky drop offs and boat docks to fish.