lol they do, they have it 3 stages and obviously follow the order haynes tells you to do them in found in 2A.8.
Then the torque is spilt in 3 stages (found in page 2A.1):
1 - Torque them to 30 Nm or 33 ibt ft
2 - Angle tighten through 90 degree
3 - amgle tighten through a futher 90 degree.
When i done it , i didn't have a angler guage, just kinda guess how much is 90 degree.
Thanks
Ming