Here is an update of this method. I am happy with the outcome.
I didn't have to water for five weeks in my tomato bed last year and zero loss to splitting or blossom end rot. Definitively the way to go!
Ya we get like monthly rains here, and it is big when it comes. I am very happy with this setup, with the next addition, I should not even need to water it anymore, unless we have months of drought. I love the time I am saving not watering.
Newest wicking bed attempt.