@lewm I thank you for the context of your most recent mail, and allow me to elaborate on my post and how it was intended to assist the OP.
I did not mention the Technics Model TT's without the prompt to supply further information from the OP, who appeared to have been steered towards certain Technics Models, either Vintage or from present production as a result of a contribution from @rauliruegas and follow up posts.
This did in my assessment seem to confuse the OP who was now trying to understand deficiencies in what he has at hand, and what options are available for a alternative.
The information that was made known by myself was with prior consideration for its value to the Thread. The OP had expressed a curiosity, and I could contribute to help with this. I own a SP10 Mk II that has been overhauled, and I regularly listen to a few other SP10 Mk II's, as well as the SP10 R.
I think this qualifies me to have had a experience, and there are a few thousand hours of use of DD TT's behind me, but I have not had a experience of the one in a overseas Country that I made a reference to, but fully get the content of the private conversation had.
I was letting the OP know the SP10 MkII can prove to be a totally satisfying TT and the bank does not need to be broken, as they had requested a thought on what was considered to be a Great Bang for Buck solution in place of the 1200 model.
The reference to the modified SP10 MkII was to give the OP an insight to further heights that could be attained if the desire evolved to attain such a level.
@rauliruegas How you have overlooked your initiation of causing the OP to take on a whole new direction in this thread and question their present owned TT and seek out alternative options to consider as a replacement.
I have encouraged the OP to receive a demonstration of a item that may have been on a shortlist, and encouraging them to use their ears for assessments and not forum talk.
Not at any time did a encouragement be given to suggest a SUT was needed.
The SUT was used as a explanation to show how valuable a demonstration of a device can be when wishing to bring something new into a owned system.
I have heard modified TT's of all drives and especially the SP10 MkII. I am very fortunate to own an overhauled SP10 MkII with Tweaks on board from a very well respected mechanical / electronics engineer. I do agree that the TT from overseas was not demonstrated to myself, but the engineer is very respected and a contact point for other renowned engineers who reside in other Countries.
I am not qualified to comment on Electronics or Mechanical Engineering, in the capacity that the individuals I do converse with are quite capable of and express an adeptness in their skills. It is quite satisfying to have the confidence of these individuals and be trusted with information when introduced to their IP that very few will be informed of.