All Around the Grid

I've tried a pretty wide variety of MESH bodies, but I've not really stepped into the realm of MESH heads yet.  Partially because they all are pretty expensive.  Also, there's a pretty large variety of options and it's not quite as clear on which is "best for me".  The body part felt pretty easy, for the most part, they are a layer a MESH that lays over your standard avatar skeleton to sort of smooth things out.  There are nuances in there, but picking one and then adjusting it with the standard body sliders felt pretty straight forward. Heads feel different.  Like, it would be easy to end up spending 2000+ L$ on something that I couldn't possibly make work for my "preferred style".  It's not clear to me how much these heads can be adjusted using the standard sliders.  The head and face are kind of a big deal, at least to me, as part of the identity of my Avatar.  It's what I look like.  I use it in SL, I have all of my values written d...