Do yourself a favor, the Gaia 1 is a very good product. You have some very heavy, large speakers. As I do.Joseph Audio Pearls. I went through the very same thing as you are, Herbie's, disc's, even thought of actual hockey pucks! The minute I installed the Gaia 1's, problem solved. I looked at the Campanella 2s, the Gaia's come with 4 different size shafts.If the speakers have some odd size the owner will send you what ever size you need. In all likely hood one of the 4 will work. You have expensive speakers, what is underneath them is important for SQ. The only issue (not really an issue) with the Gaia's is once the speaker are in place, they are not easy to move because the Gaia's suck onto the floor. Best to place a carpet under and use the carpet to position each speaker. Then remove...