>>10651152It's the same principle. Figures with good articulation can achieve a decent folded arm pose, but they still get those folder arm piece to get that look perfectly. Likewise this Guts looks to have pretty thin and double jointed legs, he'll be able to achieve a deep pose, but not one where the calf is being pressed into the quad, which the alternate parts allow. At the end of the day these are still plastic, and if they were going to allow the knee to bend so deeply they'd need to make certain concessions, like leaving a divot in the back of the leg for this purpose. For example the original Luffy's legs.