u/Hungry-Layer-9784

Recently moved to London so went to a new barber. Image 1 shows my original haircut and I asked for nothing off the top or the front. He completely raised my hairline a good centremetre which is high anyway naturally. It obviously quickly was regrowing and I wanted it back. Went to another barber and he was fuming at the other guys work and suggested buzzing it down as in picture 3 and having a 0 high fade. You can see the stubble already growing back rapidly, any idea how long this will take to come back??

Going back to buzz again in two weeks by the barbers advice so the stubble blends in naturally. Any suggestions on what do after re growth? Not the biggest hater of the buzz but would perhaps prefer it a grade or 2 longer