>>10608709Harley is easy to pose, she's just ball joints, pegs, and hinges. The tricky part in current AY would be the thigh cuts I suppose? Because they are angled in a specific way that's different from any other action figure. But they also kind of guide you into the dynamic poses as well.
My one trick to make HQ AY easier to pose is to heat blast and soften the top of the neck piece and pinch the two sides of that 凹 closer. Makes the head easier to move about.