As for the lightness of the 8/9oz. I was surprised how well it does drape for a very light fabric. Runs circles around linen. I mean, I get the desire for a linen suit, but I just feel there are cooler, cheaper, better looking options out there, (fresco). I don't have enough suits in rotation yet to warrant getting a linen suit just to join the club... yet.
I have also noticed something else about fresco. I feel that you can actually feel the fabric's reaction to heat and moisture. It tends to wick water easily. Also, when it is hot it almost tends to open up more, whereas when you wear it cooler it feels tighter. Maybe it is in my mind, but it makes sense.