It is slightly humorous to me that so many people complain about picking up and putting down pieces when the rules tell you to not do that and instead eyeball it as best you can.
Yes, it is humorous. But both players have to agree on final placement of the eye-balled minis. This will lead to arguments in competitive play. I've already seen it cause tension in friendly games.
I think the goal here is to come up with a method that is more consistent than 1) mark 2 eyeball + 2) both players must agree. That and to smooth out one of the few areas where play has a tendency to bog down a bit.