What you noticed in the Citabria is a real thing, but it still has nothing to do with being a tailwheel. This is one of the misunderstandings that props up the myths about tailwheel pilots. The Citabria has more adverse yaw than whatever else you have experience in. This comes from the design of the aircraft wings and control surfaces, not where the wheels are mounted. The most common aircraft used for tailwheel instruction also happen to have more adverse yaw than the rest of the training fleet, leading to this poor correlation.
I think you'll find your RV with a tailwheel to be an aircraft that you should fly coordinated like any other, but it won't require nearly the busy feet that the Citabria does