I can help with that! I suppose I may be thinking "Why does my neck feel so tight in this piece!?" Dunno why, but for the model you're using I recommend not doing that neck guard/Seal bit. Its much easier to go with a later foam piece. when scaled right, the neck is usually small, chances are you're going to have to go with splitting it at one point anyways though. Chest looks good, remember its going to have a bit under the actual armor that extends out. So far so good!