As part of the preparation for my around-the-world flight, I am intending to take a couple of flights with my new ferry tank after it's installed in February, in order to get used to it at various weights. This will build up to a flight of, hopefully, a few hundred NM longer than the Hawaii to California leg. This will give me solid info on performance for such a long flight, and a warm fuzzy feeling when I set of from HI that I know I can make it. My intention is to fly from, roughly, San Diego to the eastern edge of Maine, non-stop. KSDM looks like a decent departure airport, with 8,000ft of runway and not-too-expensive gas. Destination would be KPNN. The extra challenge of this, that I would not face on an ex-Hawaii leg, is terrain. I'll be super heavy, and trying to clear the mountains inland from the California coast. My plan is something like the following: This seems to offer the lowest ground. Would be interested in other's views on the best route for this. My intention is to take off early afternoon, and fly the first ~400nm across the higher ground (threading my way along the lowest route) before it gets dark. Then fly over the center of the country overnight, to land in Maine the next day.