Since you have purchased a pro lens, you might want to consider a pro head such as the Markins. While the Q10 would most likely handle the 70-200mm, you can future proof your purchase by getting the Markins Q20, for a few more dollars. Here is a link that will explain the advantages of this head. The "Sweet Spot" was the selling point for me to get my Markins M10. Once it is set for a lens, that is all the adjustments needed unless you change to a heavier or lighter lens. Just move the camera where you want it and it stays in place without turning any knobs.
These heads come also with a lever release if you plan to stay with one manufacture for your camera plates, lens plates and L brackets. If you go with the knob screw type you can use different manufactures for the quick releases. I have the Knob Screw type and it is just a few seconds difference in attaching vs the lever. I like and plan to stay with the knob type.