I've wrapped all my bar tapes since the 80's going away from the brake lever down and up towards the stem.
Pressure from the hands in my case goes downwards and out when on the tops of the bar and then, when on the drops, there a tendency for pressure from the hands to push forward a bit from the ends of the bar, so for both top of the bar and drop positions, I do not have any tape edges that can curl up and start gaps. It works, as I never saw gaps on my bar tape ever again since I started this method of tape installation back in the early 80's.......
Chombi