OK Digit. That particular lens 24-70 Canon L is pretty heavy. Manfroto has a nice product, model 322RC2. I donn't havve the spec sheet in front of me so cannot guarnatee the applicability. I own one. This is one of 2 Manfroto models with a "pistol grip". There is a horizontal grip off to to the side of the ball. Another model has the handle vertical to the ball. Average selling price is around $125 US for either model.
I didn't research this one too much. The ergonomics were good, the price was "about right" and I trusted the brand as well as the local camera store, so that was the extend of analysis. Works so far for me.