'JT' it may seem that this subject is going round in circles but I think it's healthy that there are a steady flow of posts on the subject 'cause at the very least it gets some thinking about a subject that has taken many an aviator prematurely possibly thru a little misunderstanding in the first place.
Yr posts are excellent more based on the technical side of things going beyond the original posters query but hey we can never have enuf knowledge about flying as it is a dangerous environment we play in at times
Wmk2