Couloir it shall be. I'll miss the extra gear loops, but I figure with all the screws on clippers, I can hang my draws from the loops and stick any extra needed gear on clippers. There's just not a huge assortment of things you need hanging off your harness for alpine- screws, alpine draws, tiblocs in the back, if negotiating glacier.
The massive drop in weight for minimal drop in performance is totally worth it, I think.