I like Phil's point; that the size of that whole top gives a substantial surface to provide dynamic range that probably makes up for the mid-range tendency of mahogany tops (my perception). I'll listen to the video when I get to my good headphones.
My Holloway HG is always in DADGAD--I use GHS True Mediums (along with whatever brand subs can be acquired
, usually GHS or D'Add' from Elderly Instruments); love the depth in that tuning!