Count me as another user of the VPI peripheral ring along with a Stillpoints LPI. Very effective or I wouldn't use it. Like @lewm I mainly got it to add mass to the platter, but I can't help but think that if you like your platter mat then bonding it more tightly to the LP with a ring weight is a good idea. Is it a PITA to use? Yes. But in all honesty I'm not sure if that's a feature or a bug....
one thing that does truly irk me about it: fiddling with the weight to get it to sit evenly on top of the LP.
one thing that does truly irk me about it: fiddling with the weight to get it to sit evenly on top of the LP.