Watch the Alternate Picking: Level 3 online guitar lesson by Chris Buono from Guitar Gym: Alternate Picking Workouts
This third and final Level 3 Alternate Picking Workout will delve into what I call "alternate motions" where the interval direction changes at every turn thus alternating your picking pivot approach every time, too. For example, in the first half of the Workout you'll start with a forward motion (degree-interval), which will have you picking on the outsides of the strings. Then for the second pair you'll play the opposite motion (interval-degree) and the opposite pivot, which is the inside pivot. The second half of this Workout starts with a backward motion with an outside pivot and proceeds the same as the first half.
Together these three Alternate Picking Workouts will provide you with a proven approach to working through scales intervallicly. All six ideas can be applied to any scale in any position in any key. It's just a matter of working out some fingering snafus when doing so.