An update. I still don't know what is right or wrong.
I do know that I have put bearings in three decks like the original post specified Since I posted this question.
Two of them had the seals with all three seal lips facing inboard. One of them had two seals facing inboard and the center spindle seal was facing outboard. FWIW, the seal that was put in with the lip facing outboard was torn up, obviously by grass/weeds winding around the spindle and getting under the protective cup.
I don't see how one could expect the seals to live with the seals facing outboard?
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