I contacted Thomas Woscnik and he advised that I would need a new arm board and the VTA insert is not available separately for fitting on a non VTA TW arm board . Interestingly, he advised against it saying that the VTA tower on my Talea2 tonearm is adequate. IMHO that's real class. A manufacturer advising restraint in purchasing his product !
cheers
Pradeep
cheers
Pradeep