Anyone use a Ringmat on a TT

I have used, on my Rega P-9 with Benz Ref silver mc, the stock felt, Audioquest sorbothane mat, and the regular (not anniversary) Ringmat. I have used the Audioquest sorbothane mat for over a decade, but now prefer the Ringmat.
The Ringmat is a tad leaner in the upper bass, but is "faster", a little crisper and a little more detailed from mids to highs than the sorbothane. Both are better than the stock felt. Overall I think the Ringmat is an improvement over stock and recommend it. with ONE condition:
I have several speakers I use on my LP system, when I hook up my big JBL L-200's (15" drivers) a howling acoustic feedback occurs around 250-300 hz or so, apparently resonating the hollow area under the Ringmat's paper and cork. I have never experienced this with any other mats, but it is just with this speaker, which plays VERY loud and forcefully.

Hi there,
Sorry, I don't go into in depth analytical postings but I use Ringmats on both my Roksan Xerxes and my Linn Sondek.
Far cleaner sound than the standard felt mats.
Tighter bass, better detail & staging.
I have never had any problems with subsonics and I use a sub and like to play loud !
I usually use a couple of small blobs of bluetack to stick the ringmat to the platter.
The Anniversary mat is supposedly better but costs a lot more.
I have tried a few other mats of heavier varieties but these usually finish up being glued to the platters of my homemade Lencos which the heavier mass seems to suit.
Hope this helps.
Simon

Ringmat was HUGE improvemtn on my Systemdek XII and (not as) HUGE improvment in my Rega 3. Seems to improve most tables- But you gotta listen & like the results