I'm looking at possibly buying A RB67 (first MF). Also considering Hasselblads, and even 6X4.5 .... But at the moment the RB67 seems to be the one (I change my mind every day). The thing is, I would be swayed seriously toward the RB67 if I knew that my existing tripod/head, a Feisol CT3342/Markins M10 would be adequate. That combination is extremely stable for D200 and Nikon DX 17-55 2.8 ... The Nikon combo weighs about 1.6 Kg or 3.5 lbs ... I believe the RB67 is about 6lbs (?without lens) ... Any thoughts?