I have Multiple TT's and a selection of TA's that will be a dream combination for many.
I am a owner of a selection of Cartridges LOMC, HOMC and MM, some are immediately usable some need a visit to a Third Party Service to be returned to a version of a former glory and a few are Specifically purchased to be not used as the purchased Cart'. These are donor models for a rebuild Cart'.
It would not be much more than a £1000's to have all owned Cart's in a condition I would like to see them.
Like Yourself, I can get caught up in Cart's and have a keen interest in what can be offered as a result of using them. At present one of your Cart's in use is a Cart' I have keenness to experience, and another is one I have always been keen on, and once nearly bought into the model.
When it comes to experiencing Vinyl Replays, I have always been contented with One TA>Cart' immediately available, the option to have Two TA's and another Cart' has seemed an attractive option, but not enough of one for myself to put into practice as a permanent option.
As a personal undertaking, I do like to experience how the audio experience can be impacted on by changing electronic interfaces down stream of the Cart' and TA Signal Path.
To do this I have TA's that enable the Tag Wires to be exchanged, and PC Triple C has been the Tag Wire that has superseded all other tried out Tag Wires.
I have used Din>RCA Interconnects produced with both Silver and Copper Signal Wires and PC Triple C Wire has been to one that has superseded all other wires used as a signal wire for a Cable.
I have also experienced Cart' Pins to RCA continuous wired TA's using both Silver and Copper as the Signal Wire. Admittedly all TA's tried using this wiring method, have not been the same, I am expecting a experience to be had before the end of the year where that is to change.
I have experienced the same TA's with different Copper Signal Wires with the same Cart' and TT, on the same Audio System and the TA' using the PC triple C wire for the Signal Path has proved to be extremely impressive and is the one I will aspire to.
I started working on Mechanical Interfaces a very long time ago, this is a continued experience and commenced working on electrical interfaces about six years ago. When PC Triple C was discovered and later D.U.C.C Wire, there was not much else to be done with the wire types, wire gauges and wire terminations/connectors, that is another area of learning about interfaces.
There has for myself, the need to be listening to music as the main area of participation in all this, and not in a analytical/critical way, just getting the opportunity to switch off for months at a time and experience Old and New Musical encounters is the Goal, forgetting the influence of the equipment and bespoke treatments for the equipment and ancillaries.
Additionally the use of a CD Source does not stimulate any ambitions/intentions for the Source in the same way the Vinyl Source does. This enables numerous hours of music to be replayed and experienced in a variety of moods. It is also a an attraction to have in use a CD Source that is as attractive to have in use as the Vinyl Source. In the past year the CD Source has travelled more than the Vinyl Source to be used for away from the home demonstrations, it really does create a very positive reception.
Every so often for myself and as for many others, the urge comes to experience something new.
I have developed my own way of doing this, that is pretty much contained around the Phono Amplification.
I have a few options on Phonostages > SUT/Head Amp.
I can use a LOMC straight into a MM Stage, or with a selection of permutations across the available supporting ancillaries. A lot of alternate experiences can be had, and a stimulation can be produced to try out specific recordings with a particular permutation.
Over the past 18 Months I have encountered a New to myself Brand of SUT's and a SS - MM/MC Phonostage I am keen to experience in the home system. All roads lead to the idea, these devices might just be very worthy additions to already owned devices. The reason I stick tight to this as a method, is that these device types are not anything like being extremely fragile or sacrificial like a Cart'.
Using the method where supporting ancillaries are in use, the opportunity to experience alternative presentations is not so precarious, as is a exchanging of Cart's as the other option.
A EE friend feels they have discovered a easily reversible tweak that can be incorporated into my DAC, that will most likely lift the performance to be a a little more impressive, I am keen to have this experience.
I am not a trader in equipment to keep my interest in audio equipment in control financially, even though I have bartered in the past to have a EE, carry out work for myself. I have very few sales under my belt and the last was probably a TT I have duplicates of approx' 4 years ago.
I am a hoarder and doesn't those that know me, know about it.
I have a audio/man cave room, it has been treated for absorption and diffusion, the work undertaken seemingly works a treat.
I have ESL Speakers as my main Speakers, but also have a Floor Standing Cabinet Speaker and until recently a Stand Mount Speaker.
Rules are Rules, and the Stand Mounted Speakers had overstayed their welcome outside of the listening room and were gifted by my wife to a family member.
My away from home listening sessions have introduced me to a variety of Speakers both ESL and Cabinet, some of the homes visited have both design types at hand to be put to use. I do feel as a result of these experiences, I am homed in on the virtues of both design types when used in a particular environment.
It is no secret on this forum, that over the past Six Years I have been closely associated with a EE/Engineers work being carried out on their own design for a TA'. The parallel and interesting outcome is the EE/engineer has been improving on the Speakers used within their system and I am now convinced that a search for a New Speaker Type will be one that I get a real beneficial outcome from.
Another friend who is using the same TA as above as well as having produced their own design for a TA, has extensive experience with producing Speakers. I have been demo's a few designs of Speaker against the same ESL's I own in their own home. I am always impressed with what a carefully thought out Cabinet, Driver and Xover can produce in comparison to a ESL.
As a summary and in response to the OP's request to receive thoughts and ideas.
How the Audio Systems Source is created is a personal choice and what is a stimulation is not really a restriction if pursued, even if putting it in place is requiring a additional cost and real estate to have it readily available to be used.
Open minded about interfaces has been the most important factor in keeping certain devices of audio equipment kept and not exchanged, with the correct for the end user interfaces created, there does not seem to be a stimulus created to exchange old for new.
When interfaces are perceived as being of a condition that are to be kept and there is a certainty there is no want for these to be exchanged. The idea of having a device in use, that can be perceived as really capitalising on the presentation of the sound capable of being created, does become an unavoidable stimulus, hence in my most recent evaluation of where I am at, the Speaker becomes the audio device in use with a scrutiny being placed upon it.