I bought one, used, perfect, nice price compared to new at Wayne's. SS-1 or SS-2, it's downstairs,
https://www.waynesaudio.com/shop
I'm using a walker these days, I'll find which one another time.
It's very nice, impressive quality, has easy centering device. I intended to use it for all LP's, not just warped ones, more stable contact with mat, combined with center weight I use now. Basically, let the stylus move, not the grooves.
Even new 180 g LP's have minor warps I find.
Unfortunately, the weights that hang down just hit the wide rim of my Vintage JVC TT, TT81
http://www.thevintageknob.org/jvc-TT-81.html
So, I'm gonna part with it, just been distracted by medical issues the past 5 months.