Bake-sets are only for mental-ray batch bake, so it won't help you with the transfer maps :( Envelopes are stored as an extra (hidden) shape node under the objects transform node... in case you need to find it. Any animation in a transform node will only affect the shapes that are contained in it. That's why the smooth…
Unfortunately the Smooth Mesh Preview feature is not renderable, so it's useless if you want to do any AO baking - it ends up baking with the cage mesh rather than the subdivided one. It only shows the subdivided preview in the viewport, and will not render/export it at all. At work I wrote a script which would convert any…
What can save a lot of time is adjusting the size of the envelope in the transfer maps window so it fits those small, tricky areas, then select the envelope (object mode) and use mesh>sculpt geometry, and then deform the envelope zbrush-style to make it cover the rest of the mesh. You can also subdivide or otherwise edit…