We're going down similar paths. I've ended up with a direct rim drive tt/air bearing linear tracking arm/Straingauge cart. Radically different from my prev, more traditional belt drive tt/pivoted arm/standard cart.
As you've noticed, inner groove distortion is a thing of the past. Error free tracking is imbueing an inner calm to music reproduction, but not at the expense of excitement.
A fantastic balance!
Love your Thales rig, a beautiful tt/arm combination, fantastic engineering, at a real world price.