While pick attack influences the initial note volume, and simple muting influences the note duration, and controls pinch harmonics, it still takes less motor control to pick, pinch, and mute than to hold a chord, lift one or two (or even three) fingers simultaneously and replace them for certain chords, move in both linear and lateral patterns, or apply vibrato. While synchronicity is key in being able to pick every note as it's fretted, hammer-ons and pulloffs require more motor control than striking the string with a plectrum, even when sweep-picking, tremolo picking, string-skipping, or alternate picking.