I would think it would depend on the TT.
When I had my Micro Seiki BL-91 I used Audioquest sorbothane feet. The TT had no suspension or isolation. Sounded better with the feet.
When I had my VPI HW-19 Mk4 with SAMA motor I used spikes on the TT and sorbothane for the motor, to stop motor vibration. Sounded better with tweaks.
With my current Basis I use Sobothane for the shelf, but nothing under the TT.
I think am going to get a TT shelf from HTS but I want to try it first, it may not make much of a difference with my setup. Everthing in my system besides amps and speakers are in a closet on the other side of one of the houses main carrying beams so don't get much if any vibration or feedback from the speakers.
When I had my Micro Seiki BL-91 I used Audioquest sorbothane feet. The TT had no suspension or isolation. Sounded better with the feet.
When I had my VPI HW-19 Mk4 with SAMA motor I used spikes on the TT and sorbothane for the motor, to stop motor vibration. Sounded better with tweaks.
With my current Basis I use Sobothane for the shelf, but nothing under the TT.
I think am going to get a TT shelf from HTS but I want to try it first, it may not make much of a difference with my setup. Everthing in my system besides amps and speakers are in a closet on the other side of one of the houses main carrying beams so don't get much if any vibration or feedback from the speakers.