>>6249891http://blog.livedoor.jp/hacchaka/archives/51909295.html?p=2It's not much and my own attempts aren't up to my personal standard but understanding the motion of the act and how the body shifts itself is key to action poses. Ultimately I can just guide you to finding manga pages as direct reference, looking up alterate references online on how weapons are used and the way the bodies look since SAS Joseph has enough leeway to pose due to the articulation scheme.
A bigger thing I tend to notice not many people actually test the abilities of this line and want to actually move limbs, adjust joints or swivel the legs to help enhance poses. Some SAS are super capable of it but it's either fear of hamhanding or not really trying.
At the same time there's nothing wrong with doing model style posing but always see if its good enough with you before posting.