My primary commuter is a vintge fuji track bike, but on really hot/humid days like today I take my '80 mclean tourer w/ rear rack and rack bag, and gears! I'm pretty used to shifting w/ the downtube shifters, but have noticed that often I ride using only the front shifter - going from "downhill" to "uphill" gears. Of course I shift the rear on really steep hills. Maybe I'm lazy but this technique seems to work for my commute. When I take the bike for longer rides, or when I'm riding my '89 paramount w/ sti shifters, I use both shifters much more. Am I alone w/ this technique?