I guess I got a touch of this ism. Though, I tell myself it is just curiosity. I have a 9000 Dura Ace group, minus the cranks set, with a set of C24 wheels, that I acquired from a friend. I purchased a couple of the Aerothan tubes that were on sale, this morning I mounted those with GK 26mm slicks on the DA wheels. I put those on my 1X Airborne Zeppelin, that dropped the weight from 17.5 pound s to 17.2. I'll feel like I am riding a crotch rocket.
I was going to sell the 9000 group, and still might. But, I pick up the components individually and am amazed at how light they are. So, maybe my 1X will go back to a 2X, or, my Smoothie can become a DA Smoothie. Never even considered Dura Ace in my past.