I agree with sandwich here. The alignment could be very important to transfer naval units from the West Coast to the Atlantic.
Looking at the current linked up map there are 5 seazones in the Pacific area that border the side of the map and only 3 on the Europe side…. How these link with each other probably needs a clarification. Krieg, you also read this thread? :-)
Looking at it again, I think you can make a direct move from the West Coast Naval base to the East Coast base… Unless of course Seazone 10 does not border the Western side of the Panama canal.