If you aren't part of the solution, you must be part of the precipitate.
One thing that I have noticed over the years is that when pointed downwards toward a subject, the Grafmatic will not let the exposed septum fall down below the unexposed ones, requiring a repositioning of the camera with each exposure. I own six Grafmatics, and this has been a consistent design flaw. Otherwise, they are a joy to use.
The exposed septum is repositioned by a spring. The springs are not that "springy" and will not pushed the septum against the force of gravity. SK Grimes can replace the springs with better springs.
"It's the way to educate your eyes. Stare. Pry, listen, eavesdrop. Die knowing something. You are not here long." - Walker Evans
I find that if I don't lock the grafmatics in with the Graflok sliders there is a tendency for them to pull out when operating them - at least on my Super Graphic the spring back pressure can't really be relied on to hold them tight during all the pushing and pulling.