True, I just often forget about it is all.
But I have to admit that "BreastNatural" may not be enough to replicate how gravity affects different kinds of breasts. For example, in many cases, the differences are on how the shapes curve above and below the nipple line. Some are concave above, and convex below (when seen from the sides). Some are convex in both. Perhaps this is what "BreastNatural" won't cover. It just sags the breasts downwards.
This is perhaps what I meant when I said the existing breasts look unnatural. It's something to do with how they curve (side view) above and below the nipple line. All shapes are convex in both, when most breast in the real world are concave above the nipple line when affected by gravity, unless they are unusually large. If they are convex in both, they look like they were inflated, kind of like a balloon. This is what gives the rather unnatural looks.
Maybe the new "BreastNatural" morph could take care of this?