Originally Posted by arthursteingart
I'm also worried about getting accurate bearings to avalon on a compass and how do i take current into account or is that mute due to the auto tiller?
This sounds like a good reason to do some shorter coastal trips to see how your boat handles those conditions. Practice some dead reckoning. Sail out a few miles and then back on a reciprocal heading (original heading + 180°). See how far off you are. If you have a way of finding out the current for the time of day you were sailing, subtract that out. What's left is your boat's leeway.
You'll also get a chance to see how well your tiller pilot steers your boat in the swells.
When sailing upwind to the island, you will need to manually take into account both current and leeway. All your tiller pilot will do for you is try to maintain a constant magnetic compass heading.
I haven't sailed in California but I have gone out on small boats in Hawai'i and Mexico, and the difference between morning and afternoon conditions can be quite surprising.