Check out recent threads on shelf material and CDP isolation.... I'm about to compare Caterham's Neuance isolation shelf ($145) to my air bladder (8" wheel-barrow type is small enough in diameter, but large enough in bore to not require an MDF plate in between (or is that part important, too??)). I'll let you know if the platform resolves top octaves better than the bladder (which, BTW, does NOT seem to destroy PRAT by itsself.) I'm curious as to whether there'll be a spectral change, too, and will keep you posted. Cheers. Ernie
