Added 1/2 round foam core embedded in 1.5 oz csm and covered with 4.5 oz of csm to stiffen the playpen area.
http://i722.photobucket.com/albums/w...psjaf9dzpq.jpg
http://i722.photobucket.com/albums/w...pssdpc3k7c.jpg
I covered the 3/4" aquaplast backing for the tower with a layer of 1708 and csm A bit of an overkill.
http://i722.photobucket.com/albums/w...psndd0psky.jpg