Was this what you expected before setting off? (Tidal direction being 180
deg to your course, I mean.)

Did your logged speed remain fairly constant (aside from variations due to
changes in wind speed)?

Yup. Eldridge showed those currents, but I really expected to make a better
VMG, for no valid reason!
Speed over ground averaged 3.5 to 5.5knots. Knotmeter gave 6.5 to 8 knots. Our
average was probably below 5 knots after the third hour, but picked up again at
the last few hours.

RB