I'm not sure they did. There's nothing about it in Wilkes' book. CAL states she thought he would cycle Maldon Road to Tolleshunt D'Arcy, then down the track through the fields.
Miller is on video saying they believe he cycled The Sea Wall route. He said 'No one would see him in a million years'.
The COA doc says he cycled routes that avoided the main roads - The Sea Wall.
Julie testified he planned to cycle The Sea Wall.
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But as said earlier he may have been confident enough to cycle the quicker route on roads.
As usual, options for him.