Nice progress on the beard GioChrono
Shave definately has an option of a map for the length of the hair (in addition to the standard way you lengthen and shorten it with the brushes) and can be used to 'baldify' the areas you need.
The actual help info in the pdf is really good but I found that sometimes you need to read it a couple of times and have a quick play
Are you enjoying using Shave? I loved it going into the view mode and playing about with brushing individual hair groups to get the effect that you need. It would have been nice to have all the ortho viewports in use instead of just the perpective view though.