Robert - the HP-CS is a good brush I have heard from those who own it... I own the HP-CR and LOVE it!!! I think you would be ok with using the HP-CS as long as you don't get rid of the VL right away. To me there is no one brush that can do it all. I have 3 airbrushes and currently use 2 of them a lot, the HP-CR does about 90% of my painting, but the Badger 175 does the rest (large coverage and certain acrylics) ... you might find the dual airbrush thing is what you need.
That said, I have seen many fine modelers here use the CS for everything. I imagine in time I will learn the CR enough to be able to do that too.
Question for you, do you shoot mostly enamel or acrylics? I know one user here who was an excellent modeler and used the CS but was thinking of a CR for acrylics... it can do very fine lines as well (not as fine as the CS but very fine all the same), and handle the larger pigments of acrylics better.