The urge to tinker is awash. What TT might better mine and why?

Both my TT use the Trans-Fi arm, which is going back into production.

  ++++++ what @stringreen

Said..... 2 many gear changers never even break in and optimize before moving on..... and on..... and on

my good friend RV says “ chasing tail “.....

i advise buying room treatments, isolation, laser measuring tool, RTA ( runs on your ipad w calibrated mic) and every Opus 3 test disc....

but hey, I get it

that is not sexy new....

btw enjoy your music posts

 But
mostly for fun
and using your words
” some BASIS”
.....

I have the same itch. I have an lp12 with Dynavector xv1t cartridge and AudioOrigami arm. I am very pleased with it and have tried other decks at costly expense and have always reverted to a well set up lp12 as it is so much more musical and dynamic than for example direct drive decks. I have a Tom Evans Groove + and from discussion with Tom I am upgrading to a Mastergroove. The point of this is to get as much as I can from my favourite equipment so I have a base level of high satisfaction  to value other options. Different records have different needs so I am interested in switching options.
I have tried a number of other phonos and none comes anywhere near the Tom Evans in my view for a number of reasons. I am running a bespoke high quality hand made switch box to put other turntables in my system for easy AB comparisons. I have heard the suggestions re GL 99 (?) above and was surprisingly impressed for the price ,so I am having a bespoke plinth made for 3 arms with the GL99 with 3 vintage arms and cartridges for fun. Will be ready maybe Jan 19 so that is something to look forward to.
What I am saying is basically max out (my suggestion is look at the phono stage first?) what you now enjoy, or prefer, to obtain a level that you can use as a reference point for any options. I haven't heard your deck so I don't know how far you can take it.