I just exchanged e-mails with Vihn Vu at Gingko Audio. The new VPI TNT footers utilize Vihn's squishy balls. A mini-review of the new footers on Arthur Salvatore's website (http://www.high-endaudio.com/) said the following:
"VPI TNT HR-X- One of my associates recently received the new (Gingko, modified, 'squash-type balls') "footers", which directly replace the original air suspension inserts within the four posts, that are used for isolation. He informed me that they definitely made some sonic improvements*, along with eliminating the annoying requirement to regularly pump-up the air isolators, which inevitably leaked a tiny amount of air over time. I don't know the cost and/or availability of the "footers" at this time.
*My associate felt the sound was "rock solid"; with greater "purity"; as well as more "impactful", "punchier" and "tighter bass"; and had a "more open and focused soundstage". He used the expression "greater solidity" more than once."
"VPI TNT HR-X- One of my associates recently received the new (Gingko, modified, 'squash-type balls') "footers", which directly replace the original air suspension inserts within the four posts, that are used for isolation. He informed me that they definitely made some sonic improvements*, along with eliminating the annoying requirement to regularly pump-up the air isolators, which inevitably leaked a tiny amount of air over time. I don't know the cost and/or availability of the "footers" at this time.
*My associate felt the sound was "rock solid"; with greater "purity"; as well as more "impactful", "punchier" and "tighter bass"; and had a "more open and focused soundstage". He used the expression "greater solidity" more than once."