Bill,
Don't modify the sets. The exercises "balance" your system.
The direction to face can change daily, based on your needs. Somebody out there correct me if I have this wrong or miss some details...
Stand upright, feet pretty close together so your balance is high, almost like you could be moved off balance if a stiff wind came up.
Stand relaxed, close your eyes, open up,,,palms face forward(?)[in relation to feeling],, Ask the master to "help you face the best direction for your exercise today". Allow yourself to move/turn until you stop. Trust your alignment. The sense of this gets better with practice.