In Al Di Meola and Bob Aslanian's books "Al Di Meola - A Guide to Chords, Scales & Arpeggios" there's an exercise to strum a chord four times and move from one form to another, fluidly. Below is the excerpt I'm questioning:
I'm trying to determine if there is a reason why I would be told to setup the Gmaj7 with fingers stacked on the fretboard as (high to low) 2-4-3-1 then move them to the Gmaj9, instead of stacking the Gmaj7 as 2-3-4-1? Wouldn't this would economize finger movement and allow me to play smoother/faster, as directed? Or is there a reason why I would want to learn it this way?