What setup were you using when you caught the sheephead?
A friend and I went to Stearn's Wharf midmorning on Saturday. Fishing is limited to the end of the main wharf and the end of the y. The wharf is mainly a tourist attraction. Fishing was slow, with only a few small mackerel and a few jacksmelt in the 1 ft range being caught. I even tried casting between the pilings in the well, but only got one good nibble. It may be because we were too late in the day, or because a sea lion was hanging around, looking for handouts from the tourists.
My friend did catch a few small whelks, both with the crab net, and with hook and line.