trans cr: https://www.youtube.com/watch?v=wsqf0L1F688
trans cr: https://www.youtube.com/watch?v=z6Z9CqT5xmw
trans cr: https://www.youtube.com/watch?v=bdQ9q4RtHBo
trans cr: https://www.youtube.com/watch?v=1KT4pR08ygo