Outer ring - who uses and what are your findings

From what I've read on this post is that most users of clamps like
the effect .
I have an original Merrill Heirloom TT that had many firsts
in the TT design , the ring clamp being one of them .
I have done the with and without the ring clamp 
and I found it to have a positive effect on the sound  
and record flattening works wonders on  the worse of warping .
My clamp weighs  665 grams , I had tried one from Vinyl  Nirvana  
weighing about 325 grams  
( sounded great but didn't do well at flattening warped vinyl ) .
 One post brought up the weight  and the bearing and I agree putting 2.5 or 3 lbs. one a TT that wasn't designed
for one might not be a good idea .
Another post brought up the cost , agreed if you don't have one and your TT wasn't designed for one you might be better off buying a used table with one than buying one , except the one from Vinyl Nirvana
it's a bargain .

If I replace this table my next will either have a ring clamp of it will be vacuum clamped .
Rob

Uberwaltz,
I apologize , I had tried the ring a few years ago ,
Vinyl Nirvana was using them on their upgraded AR turntables ,
I looked at the web site after I posted and was surprised to see all the Thorens tables. Shortage of AR's ? 
But I suggest you keep checking the web site for a used Merrill Heirloom tables that they have once in a while .
Check out the AR & Thorens Gallery Mike Castellana's " Heirloom-ette "
or My ( Daves of Vinyl Nirvana ) Refurbished Merrill Heirloom in the AR Turntable Resources .
Contact them to see if ring clamps are still available .