Twl,
The Still Points are Ceramic Bearings housed in what appeares to be aluminum cone. No Ferrous metal at all. This is one of the reasons I chose to use them under my amp. I too have a Berning 270. The ZOTL products as you know are very sensitive to many different exterior influences(vibration, metal,etc..) the still points do a superior job at controlling them.
The Still Points are Ceramic Bearings housed in what appeares to be aluminum cone. No Ferrous metal at all. This is one of the reasons I chose to use them under my amp. I too have a Berning 270. The ZOTL products as you know are very sensitive to many different exterior influences(vibration, metal,etc..) the still points do a superior job at controlling them.