Seeming windy in both directions = fast.
No, zero wind = fast.
The 30 mile on those roads last year was super calm and I would've likely done a 30mph 25 if it was the 5 miles shorter..
It's the days that you think it seems windy and hard slog in both directions that the conditions are fast.
@hippy started
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Seeming windy in both directions = fast.