Most here probably read/watch DV over the years I own most of his books and read his articles and watched lot of his video's, not a hater, it's mainly how his fans put him on a pedestal and he's not vary modest also, I think you could generally do worst then follow DV, but some quote him like scripture and doubting is blasphemist.
Possibility be nice to see more specs
I bet if he added 5-10+ degrees of exhaust duration he would of done better mainly he was down on power.