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I can speak well for the CB gimbal. It is up to the Wimberley. Both are very good units. I have tried both and bought the CB only because it does break down into a smaller package. Additionally I can use it as a side bracket with my smaller lenses.
You will not be unhappy with it, or a Wimberley.
I can not speak for the Jobu gimbal, but everything I read was good. They were more expensive than CB or Wimberley.
Hope that is helpful.