High speed requires "gracing" the strings rather than digging in. The pick should feel like a machine part where the strings are just "in the way".

Unlike strict alternate picking (Down-Up-Down-Up), Gambale’s method uses a whenever moving to an adjacent string:

Frank Gambale's "Speed Picking" is a revolutionary system that prioritizes to achieve fluid, high-speed guitar lines. Often called "Gambale Sweeping" or "Economy Picking," the core philosophy is to minimize motion by letting the pick fall naturally from one string to the next. The Core Principle: "The Path of Least Resistance"

If you finish on an upstroke and move to a lower string, you continue with an Upstroke . Key Mechanics