Maybe I'm inefficient in going through the card but if I was to study the form of every runner then I'd be breaching that hourly rate rule that Slim alludes to. I can't bring myself to look at the handicaps until the day before because it would just take me so long to do it and I'm not really losing any value. The prices are normally best on the morning of the race with the extra places on offer.
I apply my method and come up with a shortlist without even looking at the market. If I then see a strong favourite which I'd ruled out through trends/stats early I may take a 2nd look but unless I find something compelling I feel that by applying that method my shortlist has a good chance of having found value.
What isn't value is hanging onto the coattails of these talking horses such as The Storyteller, Tombstone et al.
My approach to that is to ignore all racing other than the Festival when the handicaps come out. I then do a race a day cutting off at horse 65 which is pretty much the equivalent of doing one card. I then produce myself a list of qualifiers and rate them. When the five day decs come out I'll lose some, and I'll lose some more at final decs. I then have a manageable shortlist to work the form from and to interpret in the context of the race the night before.