You can see to the triangle of a lighter color near the center of his chest. And a smaller one down near his belt pouch. So first off, it dawned on me that this might not be the most accurate test since my real figure will be mostly covered with acrylic paint (not enamel like the primer). My second thought was that I had been playing around with diluting the primer with Gamsol as well. Maybe I just didn't get good coverage with the primer in those areas and only noticed it when the gloss went on.
I guess I'll do another test with a figure at least dry-brushed with acrylic paint, but I was curious as to what others think. Thanks!