There are multiple effective combinations. I would use a combination of materials like wood stands with elastomer pucks and topped with stone or even better Black Diamond Racing composite platform. One of the issues with AGD is the light weight. It would be nice to be able to weight the components down as well to couple them to the platform.
I recently installed a seismograph in my house. Although I live in a quiet neighborhood, one aspect of vibration is that it vastly increases during the day with traffic and human activity. So you want mass, but decoupling (hence the elastomer pucks) from the earth.
@kidbuck Thank you for your guarantee… what are the terms?