A 1-frame-shot isn't possible yet, the only thing you can do is set the camera to 1fps and try to release the shutter-button within that second. ;) Biggest drawback is the preview then, because the preview is always shown in the selected framerate, and 1fps is a bit hard to work with for focusing or when there is some action going on. I wish RED could enable a smooth preview, at least until recording is started.
@Bill: Thanks for sharing your experiences with the Manfrotto. I was looking into them after Patrick reminded me to look into Monopods again, but wasn't sure about the weight. It looks like a really interesting solution for a low price, i think i'll give it a tray.