Unfortunately Energy as endlessly being transferred, the notion that a TT can be placed on typical support structure and not be impacted on by energy transferral is notion that is for myself very hard to take on board.
A TT can be placed upon many surfaces and deliver a sound that many will be impressed by.
A TT can be placed on a surface/surfaces that are being used as part of a specific design to enhance the interface of the Styli in the Groove. It is when the correct combination/permutation of materials are discovered, that work as a betterment for the support method within unique environments, that a TT can present in a manner that creates the perception improvements to the Sound Quality are being generated.
There has been much discussion on this in various threads, where simplistic and affordable to advanced and very expensive methods to improve a TT in use are made known.
@hikerneil I suggest that the TT in use at present is kept in use for an extended period and is set up on a support structure that has the design in place to assist with Isolation. The learning is not a one shot experience, the learning comes through trialling and training oneself to discover where the improvements are noticeable.
There may be plenty of discoveries that are influential and may encourage the present TT to be kept on in use.
Alternatively, a New TT, will be a TT mounted on a support that will have the potential to enable it to punch above its weight.