Hi Don,
since I soon expect to get a Surface Book as well (after many, many years hardware
g.a.s. is back

) I'm now "committed" to the high DPI track.
Use case: when switching between desktop (with mouse and keyboard) and tablet mode XY doesn't need much adaptions to remain usable quit easily.

So far, it's mainly the font and toolbar icon sizes I do change.
Wish: add support for "Configuration sets" (for instance, they could be called "Use sets" or "XY sets") which hold a (infinite) number of named XY configuration settings. These "Configuration sets" should have a dedicated XY toolbar button, offering the basic functions like "New | Save As | Edit | List all" via its context menu.
Ideally, each config set in turn would be designed to be fully configurable (another one of XY's deep options) by the user. Using the existing "Jump to Setting..." component jumps to mind here.
FH