I read the bricklaying article with interest since I operate a building service. My dad, (Now deceased), was a top rate brickie and always held that bricks should be laid frog down in order to disperse wet ingress more quickly. I always said this gave rise to voids in the mortar bedding. I see your article and the relevant BS states frogs down and I see the logic.
However, when arguing with the old man years ago, he filled a frog with water and sure enough, it took ages to soak/drain away. I agree that according to your tutorial that we should lay them frog up but what do you think of the water retension question as maintained (Vociferously) by dad? Please comment.