Mm, Rega didn’t get into the electronics game until around 1990 and Terry would have access to these tools by then and I’m sure Roy would have invested in them ... Specifically, though, what’s all this gibberish have to do with the discussion?
The original discussion was about turntables and cartridges. Somebody introduced Rega, to a pretty mixed reception. I thought it interesting to compare the empirical, bottom-up evolution of Rega with the decades-later top-down introduction of Wilson Benesch.
My reading of Rega's history from 1973 is that they originally supplied arms from other manufacturers, before investing in the tooling required to make their own cast aluminium arm, the 1983 RB300. Only when that tooling wore out, and they moved to magnesium, did they use computer modelling.