Smart Weight adjustment after Subdivision surface.

Currently in the subdivision surface modifier- the vertex group strength is only linearly interpolated.

I propose adding a custom curve in the advanced options section of the Subdivision Surface modifier.

In my case it's a problem in pre-subdivision weight painting- which doing so allows for a quick workflow but leaves for a lot of areas to be fixed after applying subdivision. i.imgur.com/Y37GQgy.png

As an extension of this, I have in mind "Adjacent influences" where it would take into account not only immediate Values but the ones that are within X steps, their influence dependant on The Curve. In a way a smoothing operation, not only to the subdivision values but the originals as well.