After working on Trilogy I decided to pick up Blitzkrieg next, feels pretty close. I try to play the intro runs with mixed escape alternate picking mostly, pretty sure it’s wrist extension escape on the down stroke plus a little elbow and wrist inflection plus some forearm on the upstroke.
I change from a bit lower vs higher strings still but I’ve been trying to embrace it. I don’t have a magnet but if I try and describe what if feels like - Descending I find it a lot easier to do the Paul Gilbert kinda forearm plus wrist motion and I think string tracking is falling to the shoulder. Ascending I find it easier to do a slightly probated or even neutral angle with thumb more bent and throwing a little elbow in for string tracking.