I'm not sure which part of which cassette you have referred to, but here are some general thoughts.
Steadfast justification is the process of building up internal walls (barriers) in an attempt to resolve a resistant inequity. The effort to try new ways to resolve the "problems" require greater and greater effort to stay the course. Ultimately, a steadfast character remains steadfast and their inequity (drive) is left unaltered -- even though the apparent internal/external inequity may appear to be in balance.
A change character begins with a back story where it was a steadfast character who built up justifications in order to hide the inequity to create the appearance of balance. The change character comes preloaded with these justifications and the character growth comes in the form of having those justifications (internal barriers) torn down, act by act. Ultimately, the change character has all justifications removed and addresses the original inequity (established in the back story) by choosing the alternate approach to resolving the inequity.
CHANGE AND STEADFAST CHARACTERS IN A STORY
One area I think you are getting into trouble is treating the Change and Steadfast characters independently in your story. That is not the way it works. The Main Character is the center of the personal thread (whether change or steadfast) and the Influence Character is only important in its capacity to impact the main character.
In Star Wars, Obi Wan goes from having Luke think about the Force, to getting Luke to let the Force run through him, to being remembered by Luke, to instructing Luke to follow his feelings and use the Force. The IC throughline is not so much about the IC but how the IC influences the MC so that the MC GROWS.