Stillpoints under T-W Acustic Raven AC

I use a SRA Ohio platform under my AC-1 and have had zero issues with vibration even with the subway running directly under my NYC apartment building. The US distributor for TW uses SRA as well.

Another vote for SRA platform. Phenomenal.

Symposium Ultra works very well for TW AC-1. However, Minus K is a significant upgrade from Symposium in term of bass extension, quieter background. I found Sympsosium slightly dry out the midrange a bit as a trade off for improved detail and focus but Minus K has no such trade off.
Hmmm.. I wonder, putting Stillpoint Ultras 5 under TW on Minus K, what would that be like ?

I would agree with much of what has been said here. Yes, the Symposium Quantum Signature might be slightly dry in the mids, but the overall presentation is quite neutral, super fast, improved speed stability, and has a view to the back wall of orchestral recording venues I have only heard come from a Walker. The bass is killer and very well defined. I know the SRA, but I have no way to make a direct comparison. I know it is a great product. It would have been my second choice. I do not know anything really about the Minus K. I have been told by several people in the industry that the new Stillpoints are in a league by themselves and that they are a significant improvement when used with any of these great platforms.

I have used a number of footers under my Raven One over the years, currently the Stillpoint Ultra SS. Yes, I feel they are marginally better than the old Stillpoints+ risers, but personally, I don't think the improvement matches the price difference.
Very clearly though, I feel that Stillpoints are better than other footers tried, including Herbies Isocups and Symposium Rollerball juniors