I bought a Trans-Fi for my modified Nottingham Analogue Mentor, with the Dais bearing, new motor, and matched power supply. Great improvement.
Only with time did I realize just how good the Trans-Fi really is. Every adjustment possible, all of them intuitive, but only VTA easy and on the fly. VTF fiddly (remove wand, slide a counterweight and tighten) but positive. Azimuth fiddly (remove wand and rotate set screws) but very high precision (repeatable 7 minutes of arc, IIRC), and highly stable. The wand assembly has the highest integrity and stiffness.
The wand has holes machined into it to reduce mass. But these are ideal for adding brass weights to increase mass as needed. The wand is flat, so that anti-resonance material can be laid upon it. Air pressure can be manipulated to change damping. Versatile - the thing should be called the Versatile. Just by tweaking you can significantly change the characteristics of the sound to suit your mood - high precision, or soft and romantic.
So I bought another one for my DIY turntable with aerospace air bearing and 45kg composite platter. I doubt if a significantly better tonearm is available at any price, if you are willing to put in some time setting it up. But I've got more time than money these days. So it's Trans-Fi for me. Times two.

