Has anyone heard a DNA-1 with the Gravity Base upgrade?

@br3098 thanks for your response; I didn't realize I was unclear.  I was referring to McCormack Audio's Gravity Base System upgrade, which involves taking apart the amp and integrating the electronics with a brass base in a specific way.  I had never heard of the Pillartech approach, but from their website it appears to be just a more rigid rack on which to place the amp.

Sorry, my bad.  I am unaware of this offering by McCormack.

From the absence of replies, it looks like you're not the only one.  C'mon, Goners, nobody's heard one of these yet?  Crickets...

Sorry I didn't see this question earlier. I had my DNA-1's updated by Steve last summer and got one of the first base system installations. It, is, frankly, as big a positive surprise as his VRE preamp was when I bought it years ago. I've yet to hear an amp that sounds as good. Sound emerges from a dead quiet, black background and is dynamic and revealing, yet warm and musically engaging.

Thanks @jaker — I went ahead with the mod, and I agree!