since when did brew become a photographer?
I was just offering my advice, I've shot with the 20D + 70-200 + extender on that 3021BPRO and its fine. The grip heads are great, and extremely convenient. Almost every magazine shooter I've worked with use them.
The 3021BPRO legs are better than the one you posted, so offered them as a close but better option. The grip head is for convenience, but that head you posted seems like a good head. I would just get it with the better legs.
I may end up getting a different head for my 055MF4 because I have a flash bracket that adds even more weight.
Also, I rarely use my flash when I have the option to use a tripod
