IMO the speedy 35 is WAYYY huge I cant imagine seeing someone carry the 40 daily! Its way too big for me but I have to admit that the 35 looks great om Jessica Simpson! Id go for the speedy 35
i have the speedy 35 and i too LOOOVE IT! it just doesn't look as good when I don't carry a lot of stuff, so i usually stuff it with a sweater so it doesn't sag too much.
why don't you get a Saleya MM/GM (if you really want huuge), or cabas mezzo.