I'm so glad you asked, just when I think no one cares, you ask how my commute went . . . well, I've been spinning in my 21 cog for the past two days because my rear der cable broke on a leisure ride on Sun and I'm too lazy to fix it. I unhooked my front der and tied up the rear in the 21. Good enough to get me up the hills but can't really go too fast otherwise. Nice. Relaxing. No pressure to "go fast".