Sidekick is for sale for $200 including shipping in the continental USA.
Payment with paypal.
The RRS adapter is included. I would consider this needed for any type of ball-head.
The original design has the clamping surface powder coated and is therefore not a smooth or closely machined surface. The adapter fixes this by providing a machined edge to attach the ball-head clamp.
Attachment#1 (jpg file)
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