And I got one simple question.

Was this record confirmed on the RETURN trip within say 15 minutes ?

Otherwise I say what I always say the best potential for beating the 50 knot barrier in any other way is to find a 80+ knots hurricane, hang 15 sq. mtr cloth in the air and be dumb enough to tie yourself to it.

Sort of like a cyclist claiming to have set a new human powered speed record by "cycling" down a steep hill.

Wouter