From my use I see two benefits, one being as you mentioned, it picks up any surplus of liquid that may make it into the bottom of the chamber. But more importantly, the way this works it does not rely upon getting just the right amount of cotton in the slots, to much and dry hits, not enough, and you end up flooding the chamber. With the wick shoulders up against the wick holes you've eliminated any possibility of the wick material creating choke points. Similar to how the wicking works in the GS II or, even the FEV, the cotton only absorbs so much liquid. After it reaches the saturation point it will no longer flow.
Granted, if you have the proper amount in the slots it will work just about the same, but blocking it with the shoulders, rather then running it through the holes seems to be much more forgiving. I've yet to have flooding or dry hits.
Granted, if you have the proper amount in the slots it will work just about the same, but blocking it with the shoulders, rather then running it through the holes seems to be much more forgiving. I've yet to have flooding or dry hits.