Yes you have them correct - in the future for yourself or anyone reading this thread on Vtails: hold the plane up at a knife edge postition and view from the back of the plane with the Vtail, (one half of it) as a normal vertical rudder and reflect the surface and verify it is correct. Then twist the plane 180 degrees and and view the other Vtail half and see that it too is deflecting properly as per rudder input.