Where would you place Symposium Rollerblocks for best results on digital equipment?

I used a small diameter partially inflated bicyle tube, then a bamboo board on top of this large enough to place the equipment, then put the rollerballs on top of the bamboo, and the equipment on the rollerballs. X Y and Z all covered. But of course this is just foolish so I moved on from rollerballs.

It’s actually the guy -- whose name I forget, he’s a well known musician/producer -- that came up with the roller balls idea many years ago, he’s the one who says use inner tubes. I trust him. But I'm not in a position to disagree with you.

He was...