ok finally someone is working on this...I have attached your image with some aspects that I usually fix in post and a very simple bone structure if it helps...the morphs should fix the lump at the top of the neck and smooth out the area where the head hooks to the neck ....the horse's neck is very important for balancing and it telegraphs the horse's motion...(if you ride the muscles right behind the ears...)....if you can fix this on the p4 horse that would be sooo cool....