Why not? They do different things and, depending on the situation, one or the other might be preferred.
Kal
Kal
Anybody still using soft rubber isolation devices?
I switched from things like sorbothane and Vibrapods to brass cones, and a metal equipment rack a few years ago. Yesterday I was talking to a friend who said in passing that most people still use soft rubber type of footers. I was surprised and wondered if that was true???