When first I read through this thread, I honestly had no idea how I did it. For the past week or so, I've been paying attention. On knives with half stops, I generally close to the half stop one-handed on my leg or something else, but then ease it the rest of the way closed.
I'm not so concerned with blade rap, but I find that paying attention to the feel of the close can be a good indicator whether a given knife needs cleaning, oil, or more time in the rotation.