With the stickers about a ft. from the end of the stack, try wrapping the end of the complete stack with Visqueen to slow the drying process of the ends to nearer the drying rate of the mid section but continue painting the ends with a recommended sealer. And then there is lumber that will just be lumber no matter what we do even if we parked a freight train on top of it.
EDIT: EDIT:
EDIT: EDIT: