I blow against the direction of growth (ie butt to head and belly to spine) first to get water out from the skin/undercoat, and then I blow the other way.... and repeat until the coat is dry and lying smooth..... that's routine drying and also when prepping minutes from showing.Looks nice! I’m mostly just bumping you up because I’m always looking for drying advice
But from what I understand, drying against the direction of growth first will get the bulk of the water out faster. Those who like to only dry in the direction of growth are typically doing it to help keep problem areas laying flat for a nice show finish.
ETA - I turn dryer to highest setting right from the start and that's basically all I use. If working with a pup or dog not used to dryers, I'd use lower settings.