Have you thought about....
Jeremy,A good trick for getting off the bottom (if you have the room and the wind is co-operating) is to furl out a bit (or all) or your jib and heel the boat. This will reduce your draft and in most cases get you on your way. If you’re really stuck use the motor to assist. I bought my C30 from Bill Cook in that same yard and ran hard aground my first time out in the same spot. A guy yelled out from his yard and pointed me in the right direction. If you’re interested, I can suggest joining the South Bay Cruising Club (SBCC). It's a great bunch of sailors (over 500) that sail in the bay, we have lots of events, racing, cruising, parties, etc. It's a great way to expand your knowledge, gain experience and comrades. Let me know, I can e-mail you more details. If not, enjoy sailing on the bay. There are so many great places to go, anchor, swim, stay overnight, etc. Enjoy & good luck!Gaspare"Laurie Jean" C30, hull #641