Economy of motion
I’m quite experienced in pick usage, so just did it once for 3 min to be sure everything is OK.
To mark my starting point I used stopwatch to see how much time I need to find all 12 notes on each string.
I continued to practice fretboard knowledge string by string.
My mistake was to practice all strings at once. That’s why the results didn’t increase significantly. So now I’ll do this exercise on one-two strings by day.