Hi Sassan, Thanks for the very detailed reply and the attached links - I have now settled my tripods etc. I have 3 sets of Manfrotto legs - 055V with Acratech GV2 gimbal ballhead; Manfrotto 058 with Arca Swiss B1 ball head; Manfrotto 055 MF4 Magfibre legs with Markins M20 ball head and a Manfrotto 679 Monopod with Markins M10 ballhead. I've also got a Wimberley Sidekick (£45 on eBay) and the Indian Wimberley MkI copy. All I now need is a Sherpa to carry them for me!