The apparent brisk walk rate of closure approach will safely put you on the exact spot at or below stall speed every time. Where there are no obstructions, a hover taxi in low ground effect up to the spot and then close throttle will get you there even slower but the throttle closing must be timed.
If you don't have a recent edit of "Safe Maneuvering Flight Techniques," email me at
[email protected] and I will attach a copy to a return email. Both techniques are in there.
Other pilots here have flap dumping and braking techniques, but touching down on the spot as slow as possible is key. Full flaps if you have them.