I went for it today. Only a 9 mile jaunt after work, but that took me 40 minutes. Granted I had only 1190 feet of elevation gain, I have to say my new shoes gave me wings!
One weird thing was that my left foot cramped up a bit toward the end of the ride (which never ever happens). I’ll have to see if a smartfeet insert helps or not. Also, my feet got hotter than normal in my new shoes vs my old pair of Sidis. Weird and yucky kind of hot, so I removed the insoles and left the shoes to dry outside.