Replace tnt2 springs with new vpi isolators?

They are listed under the HW19 section only - but looking at the springs on my HW19mkIV - they are the same as the ones on the TNT2 except for the 3 bearings on top of the HW19 version. Mike was saying they have been selling quite a few and people were really happy with the rigid suspension so wanted to give it a try. Any thoughts on doing this from anyone.

Ray -I am not sure but Mike probably personally prefers the spring suspension. He was just telling me what others have been saying to him and for $50 dollars its worth switching out and just giving it a try. Let your own ears decide which you prefer.
I got the tnt up and running but am having problems with the PLC - the older one with dials. TNT runs fine without PLC but with it - it dies after about 15 mins.
Found out that that back dial is for voltage for motor noise only and front dial is for speed. If someone has a technique for setting this it would be appreciated.
otherwise I intend to turn nut on back fully clockwise then start turning counter clockwise till noise is minimal but stll runs.Then I will adjust the front dial and hope it works.
I opened it up and sprayed the IC's with cleaner and will let it sit for the day to dry out ad try again.
Chris

Ray, the TNT for me is the new table with the HW19-mkIV just sold. Both with ET2 arms. I read on the web that the PLC needs to be at least 3 feet away from TT. It was on the shelf right below the TT before. I moved it away as far as possible. Went through a whole listening session last night just fine and it sounds good. Hopefully it remains that way. Chris

Thx for the tip Melm.
I was able to call VPI and get them to cancel the isolators since they had not gone out yet.
So its the whole ball and I just want to confirm that the part/s that Mike will sell me is all of the plastic gear below the ball? Chris