Have you used Cairn for a Megadungeon?
Have you used Cairn as your system for a megadungeon crawl? I want to hear from you. How did it go? Did you "finish" or did things flame out? How did you navigate the gold-for-XP dungeon loop? Would you do it again?
Are mega-dungeons misguided? Does Cairn offer another method of achieving the same feeling evoked by a megadungeon?