Triplanar vii - upgrade tonearm and ic wiring

I've never heard a Dolshi Alaap in my own home. I know that it is very well liked by those who do own it. But, and this is only if you are in a mood to fiddle, I do know one person who went from a Dolshi Alaap to a Coincident phono/linestage to an EMIA phono stage with TVC, and got happier with each successive move. I am a near neighbor of this person, and I heard his system, which is otherwise very much like yours, at each stage. I personally did not hear much difference between Dolshi and Coincident, but the EMIA with SUT and TVC does have an edge on the other two, IMO. We are not talking about earth-shattering differences here.

I was strictly looking at whether to upgrade the tone arm wiring and cable

Salectric - did you have Thom's tonearm mount mod?
It really brought things into focus and reduced vibration in the arm.
Very nice upgrade

By "tonearm mount mod" do you mean the 2-bolt mounting sled as opposed to the 1-bolt cantilevered armboard? If so, yes, I went to the 2-bolt sled a couple years ago. Right now I have my Siggwan arm on the old 1-bolt armboard while waiting for a longer 2-bolt sled that will fit the 12" Siggwan.