Thanks Stan, I've noticed a number of isolation products using some sort of ball.
It's very difficult to level the Target frame because the one I got is not perfectly true. There is also a degree of flexing depending upon the amount of weight applied. I also don't want to use the feet of my turntable for leveling. I wish to tighten them up and then loosen each one slightly. This leaves the leveling to the slate shelf.
I'm not using the Star Points but have some solid brass ones from way back when. This solution turned out to be very good looking if nothing else. It just seems to me that I'm sending vibration from top and bottom into the slate.
It's very difficult to level the Target frame because the one I got is not perfectly true. There is also a degree of flexing depending upon the amount of weight applied. I also don't want to use the feet of my turntable for leveling. I wish to tighten them up and then loosen each one slightly. This leaves the leveling to the slate shelf.
I'm not using the Star Points but have some solid brass ones from way back when. This solution turned out to be very good looking if nothing else. It just seems to me that I'm sending vibration from top and bottom into the slate.