SubPatch and MeshSmooth are very different tools

can achieve the same results sometimes, but SubPatch and HDRS would be more accurate
generally with my work they have 4 levels of work,
Base Model -> UV Mapping -> Refine Mesh -> Section Polygon Multiply
depending on what he model is, machine/man/animal/planet etc... depends on who i smooth it, but usualy i do it to sections which are detailed and then smoothed
Tsu'va Oni Ni Jyuuko Fiori Sei Tau!
One block follows the suit ... the whole suit of blocks is the path ... what have you found?