Switching back to the UV layout. Now that we have merged our Symmetry objects we have overlapping UVs that are backward on half of our model. We can see this by going to Texture->UV Map in our unwrap window.
What has happened is that our UVs are mirrored due to Symmetry and we need to fix this. We will need to grab each of our mirrored UV islands and use our Mirror UV button to flip them back the right way.
As we do this we will find that there are a few UVs that once flipped, should be welded together for continuity. Let's go ahead and address these as we find them in this step.