When I made some a few months back, it wasn't real hard(though could have been my recipe) wasnt really spongey though. It did get harder the longer I had it on the rack, though it also developed DOS.. my first experience with DOS. It was really easy to make, colored really well, scent was difficult for me, seemed for me I had to use way too much for it to come thru. It did float, was spongey lookin, with all the little air holes, though that could have just been me as well, lol. Will I ever do it again... nope... not with the DOS. pix