But the weight on the heels doesn't stay there, like the discus the weight is transported to the toes after impact. I don't want people to think the swing is flat footed.
As Bobby Jones once wrote, "There is no virtue that cannot be exaggerated into a fault."
Per 7-17, the Address Position loading of the Feet is an even distribution between both Feet but with enough on the heels to allow the toes to be lifted up momentarily without altering the distribution between the toe and heel.
Throughout the remainder of the Stroke, the player's sense of balance and force rules. Per 1-L, "Off-balance force is notoriously erratic. The mechanical device has no balance problem but the human machine does, and mastery of the Pivot (Zone #1) is so essential for good Golf. "