Originally Posted by PJ2
On the contrary, the procedure works well
My apologies, I should have been more specific; I've read the bulletins and I agree that procedure works well above 100 RA. If you somehow manage to get into flare with low speed and high RoD then it's too late to apply it. That's what I meant by "at last second".
Personally, I have never had to chance to check how it works: I have never been allowed to use ATHR with manual flight or to autoland unless flying actual or practice CAT II/III ILS. It's a company restriction I was quite comfortable with.