I concur with John and Hammond. And, much of what you're doing is overkill. I've never sailed to Catalina but I HAVE sailed half way (the point where you can see no land). That's why a GPS (or at least a compass) is absolutely necessary. Also, you'll need to leave as early as possible, and don't plan on returning the same day. Any afternoon departure is too late. If the wind falls off, you're stuck. Leaving from San Pedro is your best shot going but you may want to return to Long Beach as there's usually a wind shift about mid-afternoon. Just verify the integrity of EVERYTHING and make sure your essencials (radio, GPS, e.t.c.) are waterproof with fresh batteries.. Take plenty of water and watch the shipping lanes. The freighters will NOT slow down for you. The biggest difference you'll notice between coastal and off-shore sailing is the swells. Some of those babies will make you pucker up but know that it's do-able. Always bows into the waves. I've known guys to capsize making the trip but they were always able to right the boat. If not, there was always the Coast Guard. Remember, there are no Life Guard vessels out this time of year. Hope this helps.
By the way, what's up, John ???