no matter what I try, I can't seem to get V3's knees to bend properly. I can reposition her feet and legs, but I just can't figgure out why I can't make the knee bend. When I try with all the tools on all the parts, either the leg is strait, or the leg gets all distorted. Any help in telling me the best way to get the knees to bend would be great. Thx in advance.