I just picked up a Canon 500mm. I already have Gitzo a Gitzo 3530 tripod with a Markins M10 ballhead that I use mainly with my 180mm Macro.
I'm undecided on the right approach for the head. I'd like to choose either the Wimberley Sidekick, or a Wimberley WH-200 Head. Of course, the disadvantage to the Wimberley Head is that whenever I want to do any Macro work, I'd have to pull the Wimberley head off and pop the Markins back on. From surfing the web, I get the impression that a ballhead is more convenient for smaller lens like the 180 and the 70-200 than the Wimberley Head.
I don't want to get a second tripod, and while I have considered a monopod, I'd like to work with the new tele on a tripod - for a while, at least.
Has anyone here used both a Sidekick and a Wimberley Head? Does anyone have any first-hand experience, suggestions, or thoughts on my choices?