vpi tnt still a performer?

Which TNT?  There were at least 5.  Original or modified/updated?   Which platter?  

Stringreen is trying to sell you on a Classic platter.  At this point I don't know why.  The Classic platter is good enough, perhaps, but it's not the best platter VPI has ever made for a TNT.

A "ribbed" platter doesn't sound like anything VPI has ever made.

IMO if you can't give us more information and a picture of the table you are considering it's impossible to give you any sound advice.

As Audiogon doesn't provide for pictures n its posts, I suggest you find a site to store your picture on, and put its URL into your next post.

" the thread needs to be changed out every 40 ? records"
I have used a silk thread and never had a reason to change it.  Of course you need a speed controller if you use a thread to allow for slippage.  It is well to spray (or soak) the thread with an adhesive.

" A ribbed platter is VPI. I have a 3 and it has that. It is a very good platter. The 3 should have the air bladder feet"
I guess I stand corrected about a "ribbed" platter.  I would love to see one.  Googling "VPI ribbed platter" comes up empty.  Any chance of a picture?

IIRC air bladder feet were introduced with the Mark V version.  Some were retrofitted to earlier models.  As they proved to be a PITA, they were replaced with squash balls.

@bpoletti IIRC the Aires came out well after the original TNTs. The original TNT platter (and I still use one and would not part with it) was lead filled acrylic. It was a heavier version of what they used on the later versions of the HW-19. (Earlier HW-19 versions used aluminum-lead.) According to what HW has written somewhere, it could be the best VPI platter ever made.

When VPI gave up using lead, they made platters of an acrylic and metal sandwich. It was used on the later TNTs and the Aires. Later they dropped the metal and used acrylic only. A demand for a heavier platter pushed them to the "super platter" which was again a metal-acrylic sandwich.

My recollection is that when they added the metal, to the acrylic it was to replace the lead so that there was, in fact, no metal-lead-acrylic platter.

The early TNTs had a lead-acrylic platter.  No stainless involved.

Whether the TNT or similar table is better off with a solid connection to its base (as with Stillpoints) or a more flexible connection (as with springs, air bladders or squash balls) is likely  to depend on the room and set-up.

@bpoletti Of course you are entitled to "prefer" what you own, many people do. However you never specifically state that you have heard the acrylic-lead platter on your Aires.

As I wrote earlier, HW, the designer of these TTs, has written that the acrylic-lead platter comes closer to the sound of a master tape (his design criterion) than do the all acrylic or the sandwich platters. That he said that about a platter he was no longer manufacturing lends it some additional credibility.

I have not made any personal comparisons or claims--just sticking with what I have.

@bpoletti  One must also ask about the bearing, which may have more to do with the SQ than any distinction between various acrylic and metal platters.  The bearing that came with the original acrylic-lead platter was clearly bettered by later bearings, speaking here only of the non-inverted oil bath kind.  In my case I use a (modified) Mark V, IIRC, the last, and best, of them.