I just find it difficult regarding the skeleton to find a decent solution. The DAZ3D skeleton structure i like more, keeping it also has the benefit on being able to easily reimport many assets from DAZ3D. But you need a proper rebind pose to generate compatible animations from the UE4 Skeleton. Frankie, since you worked with DAZ3D/UE4 already a lot, do you have an animation/perfect rebind pose ? I was working on something like that using motion builder but lost it a few months ago in a hardware failure.