alf507h. Thank you very much for your reply. I have printed a copy and will carefully re-read it again over a nice cup of tea.
Some months ago I brought up the question of interpretation of speed additives with a God like senior check captain of a major airline.
His replied that he expected his pilots to take all the additives into the touch-down - despite the Boeing advice to bleed off the half-the-steady HW component.
His reason was that all the company landings were on rarely less than 10,000 ft runways so the wheel brakes took care of the additives. Not quite the thoughtful answer to my question that I had expected- but nevertheless, pragmatic.
My reason for trying to pin down the question of bleeding off additives, was because in my previous job we operated 737's into short runways (varying from 5000ft to 5600 ft) at night, and these became critical in wet weather. You simply could not afford to be liberal with additives.