Rob Studdert wrote: They are all interchangeable. My 225 Pro head will fit on my Manfrotto table top leg set although it's almost overloaded with anything other than an Optio S mounted :-)
You'd be surprised what the Manfrotto tabletop tripod will hold. Mine held the MZ-S with Sigma 70-200 2.8 and Metz 40 MZ-3 flash, all without flexing or complaining. Looked sorta neat. I haven't tried the 6x7 on it; that would look pretty wild! Pat White