I do have the Linn springs and extra long studs. They feature a replacement nut that is a "wingnut" but has the locking feature like aircraft nuts, the little rubber ring that makes adjustment a snap. The AR, or for that matter all the "sprungies" you mentioned do indeed have the sound you describe. Anthony has as of yet not decided to do the subplatter, and really thought that it didn't make that huge of a difference. I always felt that the subplatter would have been the heart of the mod, but with the big delrin inner platter, a lot of vibration is killed anyway that would have been dealt with by Merrils sub chassis. although I don't have the motor/ power supply that Anthony is supposed to eventually clone, the table sounds fine. My table still has the stock motor. the early versions had a small motor, this one has the larger one. ( still not the best by far) I think it is hayden, and the older smaller was Hurst maybe? I'd have to look under that table to be sure.Whatever, for all the cash I've dumped in it, I could have bought an armless scout or other similar, BIX, wwhatever, but decided to just mod this one and leave it in the system. I was finally convinced before to buy a VPI mark 3, but that is right when they discontinued them. I just always had a sprung table, I'm sure there are numerous unsprung besides the ones I mentioned ( like the nottingham you mentioned)that are killer tables.
Regards,
Russellc