Perimeter Ring Clamps: Yay?, Nay?, Sources??

Have you actually placed the ring on yourTT81? Because I am otherwise dubious of the fit. Also, many have reported a danger to the stylus and cantilever when placing the cartridge at the rim of an LP. Finally, what is the mass? I would not automatically assume the TT81 motor and servo will like it.

A "yay" from me.

I use an old TTW ring that weighs about 2.5 lbs. and would not be without it. It resolves any warp in a record (and more have a slight warp than is thought). It also adds flywheel to the platter which helps with speed stability and therefore SQ. By this time I place it down quickly without thinking about it. Though I use it on an old VPI platter that could take more weight, it is enough and, at 2.5 lbs, likely not too heavy for many other platters.

One must then just be a bit careful about placing the stylus. You don’t want it running into the ring. I have modified my arm rest to place the stylus perfectly. Solves the issue.

My only experience with the Waynesaudio periphery clamp is through a friend who purchased one for a  VPI Scoutmaster, his issue was with how it lipped up above the edge of the record it sat on and interfered with the body of an AT cartridge at the lead in groove. He switched carts to avoid this issue and has been using in with success for the last 4 years. I myself run a VPI and use their peripheral ring and would not want to be without it as it certainly takes care of any warped albums when used in conjunction with a BDR screw down clamp. Out of 1,600 albums I have about 4 that the ring does not help, due to the disc them selves being cut a little smaller than industry standard and the ring does not catch the lip of the album, I still use it on those albums for the added mas though. @lewm , I saw your post about record flatteners and thought this would be a great way/simplest way to solve this issue if you could find one that works on one of your tables. Enjoy the music