This is interesting, thanks for sharing it! It would take me some time to read it, but given that you seem the have already looked into this, I was wondering whether you have suggestion for a wider set of studies, a meta-study maybe.

I am asking, because if I have to choose between my empirical observations (anecdotal as they are, given it is n=1 observers), and a single piece of research without followups, I do feel justified to stick to what I have seen myself. But I am open to be convinced otherwise.