I use this rotation for 3 star crafts. http://i.imgur.com/1MQpZwq.jpg

For 4 stars, I just have to add one Piece by Piece at the beginning and remove one Hasty Touch from the rotation. Pretty consistent way to get HQ if you start with HQ materials.

(Note: Since I have so much CP, I tend to replace the last few Hasty touches with Advanced Touch)