BOAC,
I meant the exact distance the aircraft should have used from touchdown. Not air distance, not additives, no fudges. Might be a little difficult since the wet-to-poor numbers are educated guesses at best. Was there 3 inches of water pooling in the last 2/3 of surface? I'd like to know because even if touchdown is correctly on speed and in the zone, a crew might find themselves in a ringer in a suddenly NIL braking with pooling water on rollout. Probably not unlike running in wet rubber deposits at the approach end of the opposite direct.
Landing wrong without using the best performance aids available in poor airmanship. I am curious if there were also any issues with airport facility maintenance. I'll wait for the final report to see if it was an issue, was no issue, or for political reasons brushed under the rug.
Again, good discussion and a great example of what PPrune can be for airman sharing information. Thanks.