Last summer I cleaned, brightened, and stained (natural semi-transparent) a new pine deck with RAD products. I had planned to do a maintenance coat this year with the same stain. Instructions on your cleaner package says that it preps for maintenance coats, that it removes existing weathered stains, and that "it is recommended for surface preparation prior to ... reapplication of wood stains."
Elsewhere, however, your instructions say that existing stain should be removed by stripping before re-staining. Please resolve the conflict. I would prefer to prep using the cleaner, as I already have cleaner in hand.