Thanks for the shout-out, Spike. That thread is in the general shaving discussions forum. I don't know if that matters, but if a sticky from the DE razors forum is desired, then this one would do:
Illustration of Safety Razor Parameters (Blade Exposure, Guard Span, Blade Gap, Etc.)
The problem with adding one of these links as a sticky is that the viewer sees the first picture, which is out of date. I guess that I should make a wiki page for the illustration that could be updated when appropriate.