Good morning, Bertil;
Do not be too concerned with being "a driving force" in writing a message and posting it on a forum to help keep it active. I do that kind of a thing also, and you are aware of what can happen when a couple of guys get together on an inactive forum and start writing about the topic of that forum.
The Graflex Speed Graphic has always been an interesting camera to me. I admit that it is still just a camera of interest to me; I have not yet bought one. While it has been known for years as the press photographer's camera, I associate it more with Joe Rosenthal and the top of Mount Suribachi on the south end of Iwo Jima in February of 1945 when he swung his camera back up off the ground just in time to catch the defining image of The Pacific Theater of Operations during World War II as they raised the second larger US Flag. The United States Marine Corps seems to have benefited from it. One odd thing is that Joe Rosenthal has lamented the point that he has been associated with only that one singular time stopping photograph, and does not seem to be noticed at all for any of the other work he has done as a photographer over the years. By the way, USMC Lt. Greeley Wells, who carried onto the beach folded up inside his jacket the first smaller US Flag that initially went up on the top of Mount Suribachi, is about 90 years old now and lives just a couple of miles from me.
Anyway, the work with the medium format gear is just about complete now, so the 4 by 5 (or 5 by 4) gear is rising on the priority list.
Enjoy; Ralph, Latte Land, Washington