IF YOU DON't HAVE a Sidekick yet, see this superior Monopod Gimbal solution at a much lower price;
If you have a SideKick or need one for tripod use, read on.
Do you use a Sidekick on a Monopod?
If so you will definitely want to read on.
If not, let me try to convince you to try it.
If you already have a Wimberly Sidekick, you really should try this at little cost to you.
I use a monopod a lot, mostly with big lenses including my 500mm f/4L IS.
I need a sturdy set up for this, and for birding, one needs some up and down flexibility beyond just attaching the lens to the 'pod.
My normal solution is the Sirui L-10 tilt only monopod head.
However, one trick I love to use is to turn the Sirui (or RSS, Kirk etc) Tilt head to exactly 90 degrees and mount the Wimberly Sidekick.
This allows easy and amazingly fluid tilting motion with a heavy lens set up that far surpasses the usual monopod head.
I have this demanding load mounted on the tried but true, sturdy but heavy Manfrotto 680B series monopod.
Recently I got my first CF Monopod, an Induro that I will use for all other tasks, but I am going to leave the Big 500mm duty to the heavy Manfrotto. I was shopping for a new tilt head for the CF 'pod when a new solution occurred to me. I would not need a new head, in fact I would not need to buy anything as I had all the parts on hand. The Sirui L-10 is moving to the lighter CF 'Pod, for the long lens work I made a better Sturdier solution.
You will need two parts from your favorite cheap "Desmond" Arca plate dealer. I got mine @ Amazon.
Part Number One:
The Desmond DP 505 50mm Square Bi-Directional QR Plate
Part Number 2:
Desmond D290 90* Double right Angle Clamp for Arca (on left)IMAGE LINK: http://jakehegnauer.zenfolio.com/p605089996/e478cfbd3
You want that Square QR plate for a few reasons, one its square so it is easier to mount your clamp to from any of four sides, two, it has one central hole, no slot, threaded 1/4" perfect to attach to your monopod base.
Mount the plate to the Monopod base Upside Down so the Arca part is facing up;IMAGE LINK: http://jakehegnauer.zenfolio.com/p605089996/e478cfbb5
Attach the DP 290 double clamp to the plate;IMAGE LINK: http://jakehegnauer.zenfolio.com/p605089996/e478cfb8d
And now you can slide in the Wimberly Sidekick!
IMAGE LINK: http://jakehegnauer.zenfolio.com/p605089996/e478cfbf1
What I ended up with is FAR studier than trying to attach the Sidekick to a Monopod tilt head locked down at 90 degrees. It is solid from the 'Pod all the way to the pivot point of the sidekick.
And it's fast and easy to change set ups, without tools, just loosen QR clamps...
With the 500mm on board, I no longer have to WRENCH Down the tilt lock, there is no tilt lock it is some very solid machined aluminum that will only remain set to 90 degrees!
If you want to go back to a simple QR clamp on your 'pod it's as easy as, undoing the thumb screw on the DP290 clamp and replace with any double sided QR like so;IMAGE LINK: http://jakehegnauer.zenfolio.com/p605089996/e478cfbe1
The Desmond parts will only set you back under $40.00!