With what body are you using your 70-200 lens with? Calculate the overall weight of your gear. Multiply that weight by 2.
Then based on that, compare against the maximum load of the tripod head. Also, depends on what legs are you using your tripod head with. Is the maximum load less or more than that of the tripod heads?
If less, take the lesser figure as the basis of the maximum weight load. If the legs can take more than what the tripod head can support, use the tripod head's maximum weight load for your consideration.
Hope this helps with your selection of a tripod head.
Cheers!