I am currently studying and practicing the mystery method (along with many other incopporations), but purely form a mystery method point of view I ask you these quesitons:

DHV's and Negs are used in the attraciton phase, but once comfort is well on its way you have beun to reward her with some IOI's, kissing is beginning etc., must you keep using these techniques so in the comfort building stage?

A neg is not a direct attack, but it does make her self conscious...
so does a neg = less comfort?

And is the demonstration of higher value a constant thing, something that must be ongoing?

Cheers