04-18-15: Slaw
I think it's important to note that these devices work differently in every individual set-up. IE: differing TTs, in association with varying platforms etc... IMO, there is no ONE "best" record weight clamp that will work equally well in the majority of the differing systems out there.
I completely agree with Slaw, every set up and every clamp sounds different and there is no way to guarantee one design will be best for every situation.
I have seven weights / clamps designs that are different sound, including a Stillpoints LPI for my turntable.
I two extra Stillpoints LPI that were to serve as isolation under my Focal Grande EM power supplies (at suggestion of Stillpoints).
I preferred Stillpoints Ultra Mini in that spot so like TBG (Norm) I need to sell a couple.