Interesting, thanks for the opinions, gents. It's definitely a fabric I'm very intrigued by, and will have a suit made up from it at a point, practicality be damned. Pretty easy to make use of it when there's this wonderful thing called central AC.
Pliny, very interesting points regarding cut, especially the legs/sleeves/vent depth.
It's logical when u think about it, but it only really dawned on me when I had 2 suits made in the same cloth, one with the looser & shorter specs, and which feels considerably cooler.