Ha ha...griping is indeed what grips do while they're gripping ;-)
In all seriousness though I'm similarly confused about the 15mm set-up. In the UK 15mm fits things like the MB20 and the FF4 in handheld mode (if I'm right it seems to fit things like Arri SR3 lightweight bars and video/Hi-Def bars too (possibly with an Arri bottom plate fixed to a 750/F900 etc?), but I understand there is a 15mm studio mode that is the same width bars but the distance between said bars is different (greater?) Can anyone clear this up? What is the distance between the bars on Red's/Element Technica's Arri 15mm plate & does that differ from the "normal" 15mm width that would fit an MB20 & FF4 in handheld mode?:
