I fly my 172 low on approach, no flap, power off 70 knots back to 65 it's then about 15 feet I hold it level, letting airspeed wash off and when I feel it start to sink I slowly pull back. Smooth every time. If however I use flap il keep the tiniest amount of power on as if I don't I find with my Cessna (L model) and 40 degree of flap it just falls out of the sky. Good if you're high on approach though. Take full flap and nose it down. I've had it nose down 10 degrees and full flap and lost airspeed!!