By the way - I've grown to like dual ports the best - as seen here. Properly placed (directed at each ear in the player's specific playing position) they add an ambience to the sound that is hard to describe.
I first experienced it about 10 years ago in an early Josh House guitar. It haunted me for a long time.
The ports I installed on this Cordoba Solista are now slightly larger and more beveled. This guitar is head and shoulders better than any other classical I've owned, and there have been some very expensive brazilian ones in there
