Outer ring - who uses and what are your findings

As I have not tried one these are just musings.
Surely one of the 3 to 4lb rings is only going to work on a tt with a generous platter weight and powerful motor?

I guess if you are in the market to spend $1000 to $1500 for a ring it should be presumed obvious your tt would be up to snuff to start with.

I have a SME 10 and the screw down clamp works well but it does not correct poorly warped records.  BTW @invictus005, SME makes both a screw down clamp and a collect clamp (both are the same reflex design clamps) to be used on non-threaded spindles. 

For warped records I use a TTW copper ring clamp with excellent results. There are a lot of very usable and rare warped vinyl records that can be rehabilitated by using a ring clamp.

Is there such a thing as an " affordable" outer ring?
I mean less than the cost of a lot of people's carts or whole tt?

Thanks for all your input!

Heres the thing, there are some albums that are worth keeping and not dismissing to the circular filing cabinet.

As I have a modest TT, Clearaudio Concept, I realize that any sonic improvement may be subject to the limitations of the TT, however, it is a "tweak" that can be "payed forward" and used in future systems. Kind of feel like its money well spent - if it helps - as it will have an ongoing lifespan in my system.

P

I bought a traded-In Merrill-Williams 101.2 with an Ikeda IT CR 407
tonearm. I believe that the 101.2 is designed to be used with a centre weight and ring. The 101.2 came with the centre weight but not the 
peripheral ring. Curiosity got the better of me and I bought the,
quite expensive, ring separately.
I now use the centre weight and ring for all my records. Not to flatten them but because you can hear the difference. Blacker back grounds
and more recorded 'ambience'. Slightly more very low-level detail.
I do have to take more care when cuing my Ikeda 'Kai' but think It's
worth the effort.