It seems to me that the weak link in any tripod is the joints in the head. Does n't it make sense then to go with a v. solid head and a lighter set of legs? Gi ven that the thing doesn't collapse under the weight, I don't understand the adv antage of a heavy tripod. After, all the downward weight of the camera plus hea d should have a stabilizing effect. Am I right here? PS I've been using the Manfrotto geared head, the smaller one, and I'm disappointe d with how much play there is in it. Is there a substitute near the price/weigh t? Does anyone have experience of the large Manfrotto geared head? Thanks in advance.