The (hopefully) attached picture of the front end of my diy 4x5 shows how I get front swing, shift, and setup the camera with the knob attached to a 1/4"x20 threaded rod. The rod and knob are captive on the standard base, and a threaded insert lives on the base. So its not too bad, but I find it tedious screwing the thing in and out. The threaded rod is a bit too long, and I could cut it off to make it much quicker. But after I got my speed graphic with its simple little lever, I just hate that knob. There is a question here; anybody got any ideas for some sort of quick fastening device? Thanks for looking.