I've got a CPC 12 x 24 that I installed myself. Upkeep on it is very easy. I did have to add vitamin C to kill some stains early on but it's been pretty stable since then. I can see hte advantages to a cantilevered edge. We tend to lose water when a quite a few people get active in the pool and an overhanging edge would eliminate that. Here's a link for my pool install,

http://s36.photobucket.com/albums/e4...vab/?start=all