For what it's worth, the original post mentioned full back stick from brakes off, which I think is the real weakness in the technique proposed.
All this achieves is a lot of drag from elevators initially, then from the wing as the AoA increases, but at well below Vs. It's unlikely this technique will give you fastest or shortest take-off.
As Curved Approach has mentioned - use the best lift flap setting as per the POH. This will give you a better performance, and safer too. (if there is no recommended t/o flap setting in the POH - then you are back in 'test pilot' mode.)
If you, as a genuine test pilot, wanted to try the flap technique, then you might try it this way. This suggestion attributed to very old bushie Aztec pilot met in 60's.
Apply full aileron in any direction, and lower flap to just a tad less than the full down aileron deflection - which will be near as to best flap setting for t/o. Return ailerons to neutral and conduct take-off as recomm. by Curved Approach
happy days