yes the vertabrae make it more difficult to pose...most figures have just a few "segments" in the torso,usually it's hips,abdomen,chest,neck or something to that effect.the AV skel has all the vertabrae,plus all the discs between them...all are pose-able!so while the AV skel will take poses,and most of it's parts will go where they are supposed too,the spine usually stays straight. you will have to adjust it manually for each pose and this is no small task,it has many parts!now that i think of it...i may see if i can group or parent all the bits into a few separate groups to make things a bit easier i do think the AV is the best looking skeleton,it really only seems lacking when paired up with the morphing skull,which is just a fantastic model.both were probably built from digital scans and are pretty accurate. i think the difference between them is likely that the full skeleton was "optimized" quite a bit to get the poly count down to a manageable level for a full figure,you unavoidably lose detail that way. heh heh.. i have a pz3 stored on my HD with the AV skeleton holding a scimitar in one hand and a dirty looking round sheild in the other...it's all ready to go i've just never gotten around to the animating part :)