It was very generous of you to give such a detailed explanation. Thank you. > I hope the above isn't a total confusing mess. Not at all. Pretty confident tha

It was very generous of you to give such a detailed explanation. Thank you. > I hope the above isn't a total confusing mess. Not at all. Pretty confident that I understand the explanation in [3], though not sure how that applies to a single mass but you've given me plenty of places to look for an explanation.