Messed around and learned something

Before now I had no idea that I could mask part of an object and scale the unmasked part in Outfit Studio.

This is very helpful when dealing with objects between the breasts because Outfit Studio tends to stretch and compress the object depending on the slider.

Still, this is not better than modeling the low and high weight meshes with 3d modeling software but is something that can be worked with for those who can't live without bodyslide.