Hi Slaw - here are a few suggestions for you to consider -
Wiring loom - I would untwist the wire between the arm and plinth to reduce resistance. I would also place the anchor point for the cable on the plinth at the midway point of travel, not the end.
I do not subscribe to separate pods for arms, the arm must be rigidly referenced to the bearing point. Your use of rollerballs in the TT with a separate pod would be a disaster in my view.
Use your woodwork skills on the speakers - pulling the crossovers out of the box, even without changing any components, will yield a significant improvement in resolution and lower noise floor.
Wiring loom - I would untwist the wire between the arm and plinth to reduce resistance. I would also place the anchor point for the cable on the plinth at the midway point of travel, not the end.
I do not subscribe to separate pods for arms, the arm must be rigidly referenced to the bearing point. Your use of rollerballs in the TT with a separate pod would be a disaster in my view.
Use your woodwork skills on the speakers - pulling the crossovers out of the box, even without changing any components, will yield a significant improvement in resolution and lower noise floor.