Hi, Rob..
You are always (cut-paste) on the "edge of the possible" 
Many Arduino users have no idea of what the source of a library looks like, or why it has that structure, or how to force it to recompile. They are happy (and capable) using a documented library. But maybe if they could access the library functions at both a lower and higher level it would be useful. Maybe.
I'm not sure what side of the divide I'm on, or even where it is...
I really glad you guys are digging into this.