Stillpoints Ultra SS under your speakers?

Thanks for your response. I know that the only way to really find out is to just put them on and see.
I've had many conversations with Bobby in the past and have found him to be very helpful and knowledgeable. He also knows what works best for his speakers, and in my experience takes a rather dim view of deviating from the norm (no disrespect Bobby!).
I have the Stillpoints Ultra SS on order (they're pricey!), and will check them out. If there is not a noticeable improvement, I'll go back to the spikes and try the Stillpoints under the Vac Sigma 160I amp.

Thanks Heinrich. I'm looking forward to installing and evaluating the Stillpoints. I know you are already a believer!

Thanks Vladimir. I have to say that I can barely afford the Ultra ss version. If you have the Ultra 5's, all I can say is congrats! Tell me what they do for you, if you do have them.