I trained under an "old-school" instructor who used a boom mike and speaker for communication. His rational was that you could hear the airplane, and that was important. Sure enough, on my first solo in IMC at night while I was fumbling with maps I let the right wing drop. It has the increasing pitch of the wind around the airframe that alerted me to my mistake. Do any of you fly without headsets in your RV's? I had no real problem with the noise in the Cherokees I'm used to and don't really like wearing headsets.