SME 20/12 with V 12 VS Sme 30/2

As you prepare to purchase SME 20/12 with V SME 12 with great discount . I was wondering if you have heard and perceived differences with the SME 30 / 2 to move the balance towards the latter model, the network there is very little
Manitunc - The changes to the SME 20 in the Mk3 version are solely those that give it more mass and weight - heavier, thicker chassis, subchassis, and platter. Otherwise it is the same design as the 30/2.
Gordon - No, it cannot. The chassis, subchassis, and platter are different weights and thicknesses. You would be paying basically for most of the Mk3 without getting the whole table. SME does not make 'upgradable' products. You can only do that by buying a different model.
The TAS review of the 20/3 also mentions an improvement from the new black platter mat material and some differences in the suspension towers and main bearing improvement. I also had thought it was just a thicker platter and chassis, but there is more to the 20/3 than that. My sense is that it is considerably closer in performance to the 30 now, but at $14,000 it is MUCH less expensive. It is probably, THE value in the SME line. I would like to hear it.
The SME platter surface, Isodamp, is not new, just a different color. The manufacturer no longer makes the 'mustard' color used previously. Charcoal black is now SME's standard color, otherwise it is the same.
In comparing the 20/2 with the 20/3, the following can be noted:
1. The bearing's central damper has been improved, now more in line with the Model 30
2. the oil bath has been improved.
3. Weight went from 18.2 kg to 28.6kg - thicker chassis and subchassis; platter heavier and larger(from 4.6kg to 6.5kg and from 300mm to 312mm. (The Model 30 platter is 330mm in comparison).

SME wanted to narrow, not close, the gap between the 20 and 30 tables without eclipsing the value of the latter. The increased mass of the 20/3 provides much of that improvement.

I hope this clarifies the changes.