It was really meant for others, since it's easy to go "hot damn! I gotta do that!" and put some big ol' lights onto their rig and point them straight ahead just because our pictures look like that.

As far as motor vehicle traffic goes, I'd just try to be sure to keep down the "above bumper" light intensity, similar to low beams on a car. Shouldn't be too much of a concern, since most bike lights are well below the brightness of a 55w halogen, but given enough light, it makes it hard to see much else on the road (like other bikes)

Like I said, you're fine w/ lights pointed how you normally ride. Just telling the others don't point them straight just cuz we did for the photo op.