Ok explain what you are trying to achieve by letting the aircraft go when it wants to ? Now you have to Level in ground effect to still build speed before re pitching to a stable climb speed so you are still back to numbers )
At the point of lift off you are flying above the ground at slow speed with less effective controls so still in a slow speed sloppy control danger zone until that speed builds?
I have no disagreement in lightning the nose wheel in the takeoff roll or raising it clear but still cannot see the advantage in using this technique as a modus operandi ))
On very rough strips the aircraft might launch itself and there are times when you have little choice but in some types it's a dangerous procedure and you are in a danger zone until that speed builds
As for saving the nose wheel you do that by accurate control of where the nose wheel is in the takeoff run even lifting it clear but not letting it fly when it wants too then flying level to build speed ! Then pitching again for climb sounds very messy and pointless with more potential hazards than benefits
Pace