thanks for the thread 007, saves me some time. I work as a programmer in a big german company with hundreds of SLI and LSE, so subtypes interest me a lot. I do think that the subtype of a person is fixed and still requires a huge impact to change. I don't know if a subtype changes in a group enviroment. let's say a normalising subtype gets a lot of authority so he can work on a very important project with a large team, he might be more bold and agressive, but from my observation he still stays a normalising subtype, and he will change his behaviour again once he finishes the project. dominant subtypes have this constant air of authority around them, even if they only play a minor role in a project. maybe the normalising subtype just focuses on an extroverted function for a short amount of time, but it might drain him rather quickly.
I think genetics seem to play a large role in a subtype of a person. from my observation it seems that very tall and muscular men often fall into the dominant subtype for example, while harmonsing subtypes are very common among very short people (they also seem to be common among autists, people with disabilities, homeless and very obese people.)
dominant subtype have accentuated Te, Se and Fe. it seems to me that they barely focus on introverted functions and they don't really think about the consequences of their action.
(I will write more later)