The DAZ 3D figures have "Spandex" morphs which greatly reduce the breast and buttock problems. They also have wrist, ankle, and neck morphs to give an edge to the supposed fabric, but there's no control of position, no chance of short sleeves.

A control map can be used for transparency, displacement, or blending a Second Skin with a character-skin. Yes, a lot of that needs the Firefly render engine. If a suitable bitmap is provided, I can choose whether or not to use Firefly.

I've posted one or two things which show the potential of Firefly. It's taken me a while to get a feel for it, but if meshes have useful material zones, it's an incredibly powerful tool.