bearisgray

My opinions about starch/sizing -

I think of it as a foundation/support garment such as a bra or girdle or spanx - it temporarily will give a body a better shape - but after the garment is removed, the body reverts to how it was.

So that is how I think of starch/sizing - it can be "helpful" to stabilize a piece for a while - but once the fabric has been washed, it will revert to its "natural" state.

If the fabric is poor to begin with, starch will not make it permanently better.