both the 152 and the 172 in my primary training
Did you look at the book numbers for landing? They are almost identical. And there's no reason to airspeed to either when the weight of the instructor is removed and it's landing slower.
I shed a tear when I see pilots flying our club's 172SP's over the threshold at 70 knots and 100 AGL on a calm day and literally touch down 3000 feet down our 6500 foot runway. Sure its safe, but poor airmanship.
Sure it's safe? Based on what? Why is being setup to float half a mile down a runway before it will land considered safe nowadays?
Even if you come in at redline kts in a 172 (faster is always safer right), look at the airspeed when it finally does start to flare and land on it's own. Why not be at that airspeed as the plane comes across the (approach) end of the runway in the first place?
One of our instructors teaches this "extra speed for safety buffer" bologna and its been the subject of many rants from my instructor.
I rented from a place that required 6000x100 runways for the STOL 172 for safety reasons. During the checkout I wasn't allowed to get below 65kts on short final - recommend 70kts absolute minimum at the high altitude airports in Colorado. Seriously, the guy freaked out when I said "slowing to 55 then to 50 over the fence" when turning final. (I was at 60 on base and he didn't like that at all when he realized I was already too slow) When I went around and fixed the too slow thing, on the 10,000ft runway I was starting to think about going around because the runway was too short to land on at cruise speed over the touchdown stripes.
It's a STOL kit on an ancient 172. It's totally flyable at 45kts close to the ground in total safety. It can land on the numbers and come to a stop almost immediately. Put a slight headwind on it and it'll stop on the actual numbers easily. Heck, I grew up flying the same era plane without the super floater STOL kit at 50kts all the time on final because that's what all the instructors at the time were teaching. I even did it on my checkride and the DE was all happy with it.
Do not be afraid of the low-speed end of the airspeed indicator...
+1
Believe it or not, the plane will continue flying even when you can feel each wing trying to stall in little sections. (Forget the airspeed indicator, it will be bouncing all over the place at the time but the plane will keep flying)