Surely, the singlespeed experience goes as follows:
Climb on bike at bottom of hill and pedal like mad until reach terminal speed (about 7mph, give or take 0.1mph). Slower, slower, slower, beads of sweat and burting blood vessels on temples, lots of grunting, slower, trackstand, wobble, keel over and unclip. Get up and brush yourself down. Gaze proudly at the 12 metres of uphill section completed so far and push the rest. At summit, mount the bike and clip in. Faster, faster, faster until reach terminal speed (about 7mph, give or take 0.1mph), faster, faster, faster, “f**ketyf**k!”, legs flailing out of control as the force of gravity ups your speed to 20mph (about 6000rpm at the crank, give or take 500rpm). Wobble, keel over and slide.Unclip and spend the next 30 minutes brushing gravel out of butt cheeks, elbows and face. Push the rest of the downhill section until reach the flat. Proceed at 7mph until meet another incline. Repeat.
I say this not having tried it (if you disregard my experiences on a Raleigh Chipper aged 7yrs)