Nellsman
I drew attention to the two Southwell races because in my view they are excellent examples of the potency of the class/form horse as VDW defined it, not retrospectively to claim selections I did not post prior to the races concerned.
Not that, even with what VDW told us, the class/form horse is necessarily easy to identify. The Southwell races were in my view relatively straightforward in that respect but VDW warned us that "to isolate the "class/form" horse can often prove a tricky problem". It certainly has for me in the only race I've studied today, the 3.15 Thirsk, where I am far from sure which it is.
T
Tufnel
I had a quick glance through my notes on the best bet/next bet six, but will leave a more substantial look until the turf season winds down. However radically different VDW's approach was with them remains to be determined, but:
all six meet what, in practice (ie as observable in his examples) seem to have been his parameters and policies regarding consistency
four were "form" horses on what seems to have been his way of rating form status
one (Arthurs Minstrel) can be viewed as an example of what he described as "less obvious form",
So five were potentially findable without resort to anything outwith his usual lines of analysis (though made much easier in some cases if by then he was availing himself of the opportunities that the ready availability of information about ORs opened up).
One seems to me completely obscure - Rivage Bleu. Yes, we can all make positive observations relating to him - that his defeats were not as bad as they seemed because he was running from out of the handicap, that the key horses in various races had good prior form, and of course that the last race key horse had won again before Rivage Bleu's win. All true. But I can see nothing in his career which (a) provides a basis using the known VDW lines of analysis which would lead one to make him a selection and (b) indicates that the trainer "TOLD" us that the horse was "REALLY OUT TO WIN" (unlike the coupled example, Prominent King, where one can reasonably say the trainer did).
I am thus currently forced to agree with you that there must be a quite radically different approach in play, albeit one that in five out of six examples produced the same selections as one might reasonably have found using the better known VDW lines of analysis.
"As we all know, it's pretty much beyond doubt that GR of Lincs was Hall pretending to be somebody else again."
That has certainly been suggested and some clearly believe it, but personally I doubt it was the case and certainly don't assume the examples GR of Lincs gave can be used in the same way as those in "G Hall, Lincoln"'s letter published on 11/01/79.