The DO is MUCH easier to fold if instead of pressing the ribs down at the knurled lock knobs to disengage them, you press down 1-2 inches out from the knurled lock knob on the rib itself. Takes about 30 secs to fold one.
Thanks Conner and Frank. I'll try it again. I had an Annie L moment with it on location. An assistant couldn't get it open without the ribs twisting into a swirl pattern, I gave it a shot and threw it into a dumpster. My assistant retrieved it and we all laughed. Ever since it sits in a gear closet. I'd rather use the Mola Seti or budget permiting the most excellent and vastly superior Briese 77. I wish the Deep Octa had a similar mechanism to the big octa, which I find to be really easy to open and close.
And Frank, I bought it at US introduction over a year ago. I'm not sure if there is another version.