I have a Berlebach 8043. It is a nice tripod. I love the built in pseudo ball head but frankly, the center column is a nuisance. I wish I had the short column. I'm 6 foot but rarely shoot with the legs fully extended, let alone with the column extended. The regular column limits the minimum camera height to about two feet.
All that said, the column is plenty sturdy for any 35mm slr that I can imagine. Might be OK for a smallish medium format rig - like a hassy. No, I don't think I'd feel real comfortable proping an RB67 atop the fully extended center column...It would likely be fine but, I'd be nervous.