I felt like the blueprints were more forgiving. When I was off, the apex pros didn't provide much forgiveness. They felt great but just required a little more out of me.
I went to some S55s after the apex pros and rode those into the ground, found another set of near new S55s after the first set was dead, then got the Blueprint S. The blueprint may be a little less forgiving then the S55s but not by much.