I went for a ride on Wednesday night after work, we had clouds over our moon, too. I didn't find it obscured the vision one bit. In fact, when I got out of the city and the streetlights, I considered turning my head lights off altogether and just letting the moon light the way for me (I've done it before). Of course, riding on bikepaths tends to obscure one's vision at the best of times. I'm on record as saying that I'll be ready for riding on bikepaths when I can ride through gridlock blindfolded.