Well,
I'll be a bit of a contrarian here. I have had a Berlebach 3 section, center column tripod for about 4 years. It is wonderful to use, very well made and amazingly sturdy. I use it with my 4x5 field and my 2 1/4 SLR.
I tried the Berlebach with my 8x10 field camera, about 12-13 pounds sans lens. It worked, but I was concerned about stability when I was shooting lenses beyond about 12". The stability concern was more wind stability, than general shooting. At my normal shooting height, the leg length versus the available spread created a smaller footprint triangle than I was felt was optimally safe and stable. Simply put, I thought the combination to be "top heavy" and was concerned about strong gusts blowing it over.
I would really be concerned using the Berlebach Report series legs for ULF. That's a lot of bellows, (read "sail"). Berlebach has a heavier range of legs, not distributed in the US. I got lucky and bought a wood Miller from a fellow AGUG'er. You will not fully appreciate my comments until you try a "heavier duty" set of legs. There is a reason funky old Miller and Ries tripods are desirable. Rock solid stability and confidence. Right tool for the right job!
Cheers,
Geary