Minor differences of doctrine are not tolerated in aberrational groups. To speak out or to question is to have a rebellious spirit and to possibly fall under God's wrath. Leaving an aberrational Christian Group is always extremely traumatic. Leaving is also very traumatic because even though the member no longer believes in the group, they have been indoctrinated to believe that salvation does not exist outside their walls. In Transition Doctrines and practices tend to mutate further and further from orthodox belief and expressions.
Aberrational groups are never static but tend to devolve theologically.
Many begin fairly orthodox, but over time become heretical in major doctrines. The practices and rituals of aberrational groups also tend to take on divine authority. Practices that were optional or conditional in the beginning become absolute standards whereby commitment and spirituality are measured.