Roger long time now since change from what i remember Benoist normaly does it hopfully he'll be around soon to change, as far as i know its still meant to be SOTW, if Benoist is to busy i imagine someone fill in for Benoist time being?
It's an effect you cant get IRL with any decent reflex camera. You select a long shutter time and during the picture, you rotate your camera around the lense. need training, but finally not hard to do.