Sean, glad you found the thread useful! Keep the great ideas coming.
Dana, I’d like to hear your impressions of the EVA Anti Vibration Pads, especially with regards to the smell some reviewers complained about.
Speaking of cheap solutions, when I unpacked my BBA Rigid Rack, the packing material consisted of multiple square and circular pads to protect the butcher blocks and legs. I did not throw them away and in fact, used 8 of them underneath my two SVS subs and they have eliminated the fixtures rattling when I’m driving them hard for HT. Here’s a pic of the pads I collected: