What is the Main Character choosing between when he/she makes a Leap of Faith?
The answer is that the Main Character needs to make a choice between going with the MC Solution, or going with the MC Response when he makes a "leap of faith" at the personal crisis point in the Main Character throughline.
FOR CHANGE CHARACTERS
Change characters come to a story with baggage. The baggage consists of the MC Problem hidden by blinders (layers of justifications), which are replaced by the MC Symptom as the apparent source of the MC's personal troubles. In comes the Impact (Influence) Character who disrupts the MC's equilibrium by introducing an alternate way of addressing the MC Problem -- one that MAY be more effective.
As the acts progress, the MC's blinders are torn (or worn) away. By the end of the story, all the blinders are removed and the MC can now see BOTH pathways open to him. The argument for continuing to use the MC Response to address the MC Symptom is balanced by the potential effectiveness of the MC Solution to resolve the MC Problem. Unfortunately for the MC, the amount of pressure applied on the MC by BOTH approaches is such that the MC must choose one or the other or risk a psychic break. Since there is no telling which approach will resolve the personal inequity of the MC, the MC must make a 'leap of faith' by choosing to discard his old way of doing things and adopt the MC Solution with the hope that he makes the correct choice (for him).
FOR STEADFAST CHARACTERS
Steadfast characters' stories are slightly different. Generally-speaking, steadfast MC's do not have baggage at the beginning of the story -- at least baggage related to the personal issues to be explored in the story. Then, SOMETHING HAPPENS to throw the MC off balance (MC Symptom), which requires the MC to make a choice or do something in response (MC Response). This response to the event becomes the cornerstone of his apparent inequity. (For example, Dr. Richard Kimble's wife is murdered and he is wrongly convicted for her death.)
Unlike a change main character who comes fully-loaded with back story baggage and whose resolve is eroded as the story progresses, the story of a steadfast main character is the process of building UP the blinders. This works to focus the MC's resolve on the MC Symptom over the MC Problem (which acts as the source of the MC's drive). The Impact (Influence) Character performs the same function by increasing the pressure on the MC. With each act turn, the MC must shore up his resolve to counter the pressure placed on him by the IC.
By the end of the story, the amount of effort it takes the MC to maintain his resolve, matched by the IC's pressure to force him to change, threatens to overload the MC completely. Like a Change Main Character, the Steadfast Character cannot tell if continuing to try to resolve his personal issues by pursuing the MC Response is better than throwing away the source of his drive (MC Problem) and adopting the MC Solution. So, he makes a 'leap of faith' by blindly picking to stay the course and hopes it will resolve his personal issues.
Most understandings of story stress this moment for the Main Character. What does Dramatica have to say about it?
No, there does not always need to be a leap of faith.
Another way for a character to change is one where the character changes gradually over the course of the story without awareness of the change. We call it a creep instead of a leap.
One of the best examples I can think of is Hamlet in Shakespeare's "Hamlet." Hamlet starts the story as someone who thinks too much (Thought as MC Problem). When given knowledge (MC Solution and OS Solution) of his father's murder by his father's ghost, Hamlet's reaction is to think it away ("Maybe the ghost is really a demon from hell sent to trick me" [paraphrased]). Hamlet is supposed to reveal his uncle, the new king, as the murderer.
Fast forward to the end of the play. The last scene has Hamlet in a duel with Laertes. Hamlet is acting as the King Claudius's proxy (!) in the duel. When the Queen, Hamlet's mother, drinks wine poisoned by King Claudius, Hamlet does not give a moment's thought, acts on the knowledge and kills the king on the spot.
At no point does Hamlet make a conscious choice to change, though he is changed over the course of the story.
Case in point: One big debate through the years is whether or not Hamlet was crazy. When the ghost tells Hamlet about the murder, Hamlet's approach as a Be-er is to pretend to be crazy. Since he is changed over the course of the story in a 'creep', not a leap of faith, it is unclear if part of the change includes going from pretending to be crazy to becoming a nutcase. My vote is the former, primarily because of my understanding of the storyform for the story.
Does your Main Character Change his way of dealing with the problem at the heart of the story (such as Ebeneezer Scrooge’s switch to generosity in A Christmas Carol) or remain Steadfast in his convictions (such as the innocent Dr. Richard Kimble in The Fugitive)?
Change can be good if the character is on the wrong track to begin with. It can also be bad if the character was on the right track. Similarly, remaining Steadfast is good if the character is on the right track, but bad if he is misguided or mistaken.
Think about the message you want to send to your audience, and whether the Main Character’s path should represent the proper or improper way of dealing with the story’s central issue. Then select a changing or steadfast Main Character accordingly.
Do you want your story to bring your audience to a point of change or to reinforce its current view? Oddly enough, choosing a Steadfast Main Character may bring an audience to change and choosing a Change character may influence the audience to remain steadfast. Why? It depends upon whether or not your audience shares the Main Character’s point of view to begin with.
Suppose your audience and your Main Character do NOT agree in attitudes about the central issue of the story. Even so, the audience will still identify with the Main Character because he represents the audience’s position in the story. So, if the Main Character grows in resolve to remain steadfast and succeeds, then the message to your audience is, “Change and adopt the Main Character’s view if you wish to succeed in similar situations.”
Clearly, since either change or steadfast can lead to either success or failure in a story, when you factor in where the audience stands a great number of different kinds of audience impact can be created by your choice. In answering this question, therefore, consider not only what you want your Main Character to do as an individual, but also how that influences your story’s message and where your audience stands in regard to that issue to begin with.
Scrooge, A Christmas Carol
William Munny, Unforgiven
Luke Skywalker, Star Wars
Judah Rosenthal, Crimes story in Crimes & Misdemeanors
James Bond, On Her Majesty’s Secret Service and Casino Royale
Frank Galvin, The Verdict
Job, The Bible
Dr. Richard Kimble, The Fugitive
Laura, The Glass Menagerie
Cliff Stearn, Misdemeanors in Crimes & Misdemeanors
James Bond, most other James Bond films
David Moscow, Big