I believe the 2006, 2007 and 2008 regional event buttons used the same design each year for both regionals, changing just the dates. The 2007 Door County button did add a small image of Pottawatomie along with the Racine Reef picture.
Portland was the first "underway" regional event - it was on a boat. Even had someone who flew in from (if memory serves me right) St Louis who was ferried out to the regional boat while it was underway.
Dave the Oakland Regional was 3/4 "underway" and 1/4 ashore, lunch was on board as we cruised the harbor and some presentations also happened during the cruise.. We toured the lightship after the cruise and the Gold was drawn after the cruise on shore..