I use the RSH-61 on Gitzo 1542T legs. I took it off my Redsnapper monopod to use as a stopgap until I could afford something "better" after the (for me) large expense of the legs, which were used from Ffordes. It's been there ever since as it does the job perfectly and I can't see the point of spending 10x more for something that might be slightly heavier to do the same job. It has graded rotation lock, so will be fine for landscape, and supports either my 7D or 1D MkIII with a 70-200L 2.8II attached, so should take your combo ok.