i have the SLR Focus version with the ballhead X, the toughest most robust model they make, and i have no issues hanging my gear off it. the legs are very stiff to bend, and once you get them in position there's no way they're coming loose. they can easily support the weight of up to a full size metal DSLR and 70-200 2.8 lens, as long as you have them secured to something sturdy & tight so it cant slide down. i got it new on ebay, as well as a mini one for my compact, for less than the price of a focus alone from the joby site. and yes it's a genuine product, not a knockoff.
here's a pic someone took of mine doing a relatively simple job (its actually the only pic i have of it in use, cos of course the camera is usually ON it). and for the record that's a 5Dii + grip + 50L ive trusted to it
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