I can't comment on the Aurios, however I can comment on your curiosity of the effect of isolation between bookshelf speakers and their stands. I use another product called the 'Feet of Silence' by Solid Tech (another bearing-type product) under CDP- very nice effect- produced better, more natural frequency extension, less smearing and a tad better resolution- you know, the usual benefits...
I also tried them under bookshelf speakers- similar positive effect. Anyways, regardless of the isolation tweak product of choice- be it the Feet of Silence; Aurios bearings; Symposium rollerblocks; etc., I can vouch for the positive effect I noticed when decoupling bookshelf speakers from their stands using these type of devices (as opposed to the old rigid 'Blue Tac em' to the stands' approach.). Just my $.02...
I also tried them under bookshelf speakers- similar positive effect. Anyways, regardless of the isolation tweak product of choice- be it the Feet of Silence; Aurios bearings; Symposium rollerblocks; etc., I can vouch for the positive effect I noticed when decoupling bookshelf speakers from their stands using these type of devices (as opposed to the old rigid 'Blue Tac em' to the stands' approach.). Just my $.02...