So there's was an earlier post that turned into a flame war from other posters so I felt it would be better to start a new thread.
I just picked up the Rocketfish 65" Carbon fiber tripod and will give some feedback. Let me just first state I am in no way an expert in terms of tripods, infact the only experience I have with them is the cheapo Merkury Innovations aluminum tripod I got 2years ago when I bought a Sony alpha. The reason for my upgrade is the tripod i had was no were near stable enough to support my camera anymore and long exposures were coming out gross cause the slghtest bit of wind or other element would shake it.
I originally got the manfroto 7322YB but immediately returned it because the ball head was extremely tiny, and it had no quick release which I found irritating. I though I would give the Rocket Fish a try.
Out of the box it was heavier than I had expected and it's annoying that the handles need to be removed everytime you store the tripod in it's bag. The handles are also extremely tight and tough to take off, which i'm sure will get easier over time.
I set up the tripod and put my Gripped 50d with 2 bp511's and a flash bracket with a 430exii mounted on the right side sticking out. There was no fluxuation on the bubble level indicating the tripod was very receptive to the imbalance. It feels very sturdy and I'm 100% confident it will support the weight of my camera. We also did a few "oops I kicked a leg" or "bump into the tripod" test (my gf held the camera strap incase) and it held up very well. 1 major flaw is the lack of being able to pan in Portrait mode, but a L plate will take car of that problem.
It gets extremtely low to the ground. All the legs have more than a 90deg angle of mobility so my new found love of macro photog can take on new levels of creativity since I can get the camera ad low as 4 inches mounted on the tripod. The logs lock in 3 different positions which is also fairly nice. The quick release plate has a double secure safetly feature. Incase you forget the clamp, like it did when I rotated to portrait, the 2 safety kept it from falling to the ground.
I'm fairly happy with the tripod and I'm pretty sure I'm going to keep it for a little while. I was lucky enough to only pay 70$ since my buddy gets a discount working at BestBuy. Compared to the Manfroto I had owned prior, there's certainly a difference in build quality and feel, favorinh manfroto but as an amature/hobbyist I feel it's a very capable tripod with versatility. I'm also 6'2" and at max extension I need to stand on my tippytoes to see in the view finder.
Again, rememebr I've never had experience with high end manfroto/gitzo buy i feel I can safely assume the features I'm boasting about on the RF are also standard on those brands, and the build quality is superior but for a financially less expensive option I think the RF is a good choice.
Hole this helps, Neill
ps. I wrote this on an iPhone so I'm sorry for the terrible spelling/typos

but it doesn't say anything about max load and how much it weighs. Do you have any numbers? and how far does those legs extend? I wonder if it will be steady once you mount a 50D + flash + 24-70L or 70-200 2.8L
or this cheap one 



