Rayburn is the most important to me. Just wanted some feed back before purchasing.
The Boatlanes chip is pretty handy on Rayburn. It's kinda useless on the far south end, but everywhere else it's good to have. It outlines the Black Forest and the Emerald Forest. It also draws outer timber lines for several other areas. You definitely need it to run north of the 147 bridge up to the 103 bridge.