Also on the subject of wake. When I was completing my command training we landed at LHR on 27R with a very light tailwind from the rear right hand quarter. The training captain then related a story to me of landing in a similar situation with nother command trainee where the preceding aircraft's wake had been blown back to the threshold/landing area. He said that it was very exciting during the flare!
Sme months later it happened to me in not quite so dramatic a fashion but noticeable.
Apologies if I am preaching to the converted but something to bear in mind.