I bought one of these as I wanted a way to adjust VTA more precisely.
It's beautifully made — really really beautifully made. It keeps everything perfectly rigid too — it works with a large screw thread.
I bought mine in anodised black — looks like it's OEM — except of course Rega don't do VTA
One issue caused by the Technoweight is that you can't get to the rear screw without removing it.
Am tempted to drill out the self tapped holes and replace with proper bolts — that way they can be loosened from below whilst being held above with an allen key — also I might trust them a bit more.