Just make sure that the plane did not come with right thrust built in. Many of the newer ARFs already have the thrust built into the firewall so if you add more you are going to create new problems.

I dont worry about right thrust in foamies because they are so easy to fly anyway but everything else should have whatever you need to counteract the torque. I would not pin it down to 2 degrees but that is a good starting place, and in my experience usually good enough.