On a group ride this afternoon, I was riding second in line for an extended stretch. Rather than looking down at the lead-riders rear-wheel, as I have in the past, I was gauging my position from the angle of my view of the lead-riders helmet. After a while I did look down and realized that I had been positioning myself with about 6 inches space between our wheels. What a great feeling! Later I was leading for quite a few miles and when I stole glances behind me, the second rider was always inches behind. (I need a helmet mirror!) We were doing 18-21 MPH- not particularly fast, even for me, but it was the connectedness that felt so great.
I"m getting to the point where I'm less excited about doing solo rides. Up until a few months ago, I only rode solo. But there's nothing like a group ride with a critical mass of well-matched riders.