See page 11:
. . . "Hi-Fi+: Why don’t Rega tonearms offer provisions for VTA/SRA adjustment?
RG: Basically, knowing what we do about tolerances for stylus positioning within cartridge cantilevers, we do not really accept that the concept of VTA adjustment is valid or beneficial. Consider this: to the best of our knowledge, even the best cartridge makers are only able to achieve stylus positioning accurate to within about a 2 degree tolerance window—but not better than that. Now ask yourself why it is desirable to trim stylus positioning by fractions of a degree, when the stylus’ starting position might fall (and in practice does fall) literally anywhere within a two-degree window. We aren’t saying you won’t hear sonic changes when you attempt VTA adjustments, but we think those changes could just as well be due to minute changes in tracking force, or even to the tightness of set screws, etc. used in VTA adjustment mechanisms. This same line of thought, by the way, is also why we do not see the need for radial tracking tonearms."
Roy Gandys answer to the question does not hold water IMHO. Because of the poor tolerance for stylus positioning, a VTA adjustment is essential to bring things to their correct position,or, at least, a better position . . . cant just ignore it as though the issue does not exist? He is even agreeing, VTA changes can be heard. At least one has the opportunity with VTA to adjust things to the way you like to hear them??????
I'm a Rega man through and through, but I do wonder why sometimes?