I usually weigh 139-140# going in, after bulking up ~3#. Gear and food for 10 days is another 25-26#, depending on shelter option and food option. I, too, use poles.
The Namche's are more durable, but I prefer the Inov8 370's for the exceptional friction properties of their soles(invaluable on granite slabs and talus), lightness, and fit. I liked them enough to buy 3 extra pairs just before they were discontinued. If the Namche's fit you, they are a heck of a good shoe, IMO/IME.