Yes, John, that pretty much squares with my concerns. In fact is was knowing about your 767 case in (a), and the reports from it that highlighted some accidents that may have resulted from similar problems, that lead to my comments abut missing the cues that the wrong glideslope was captured.
Captain Stable
That is interesting, as I know that more than one FTO is teaching that capture of the glideslope from abovde is illegal. In fact I was told so in both groundschool and IR training. It seems however that even if legal it is not at all safe!