Kris,
I have the large inspection ports on the N20 and I love them. They are just aft of the daggerboard trunks. There is a bulkhead behind the inspection port and the trunk in front which makes a fantastic storage area for quick and easy access while racing or under sail, plus there is ALOT of volume in this area. We store spare lines on the bungee tubes and also use the tube as a place to tie off the leash for the cover. There is enough room in this area to put a small soft side cooler, or drybags for fowl weather gear, which is very nice for distance racing. I'll see if I can find a picture to post.