I tried for years to do the "touch and release" thing, and found for me, it was the most inconsistent method I ever tried. I hold for a second or two, what ever it takes to "feel" the shot. I'm sure each person is different, but for me it's a matter of wondering where the arrow will hit on the first shot, to knowing. If that takes 4 or 5 seconds, I will know when I release.
It could be my "touch" isn't consistent before the release, but I am not gonna stress over it. What works for me is the short hold and that's what I will continue to use.
My aiming method is 100% instinctive and natural. When I thought about it, it was the way I always shot as a kid, never thought about shooting, just did it. That style allowed me to take pheasants on the ground (no shame either), on the wing, squirrels on the ground and in the tree. It just worked for me and still does. Do what feels natural to you.