Cool information, Douglas. I noticed this distinctly when I went out shooting snow-scenes recently. One day, I took my K200D with kit lens, and the next I took the SP-F with the 55 on it. I shoved both under the front of my winter jacket, and with the K200D, I looked pregnant (which I have to say, being a guy, is not good). The SP-F was much easier to manage.
The Spottie was heavier than the K200D, but to be honest I don't mind lugging two pounds of chrome around with me when I take pictures. Never have. One of the reasons I picked the new Pentax over other bands was it's heft. My camera bag (a leather hardcase about the size of a trumpet case) weighs
10 pounds, and that's without the camera.