I have only gone and cracked the problem. I followed my own instruction as from the last post lol. I recreated a game and ran some tests. The problem with ent_bonemove is that it takes the scale of a model into account. (THIS SHOULD BE STATED IN THE MANUAL) If both models have the same scale then the can both equal the same co-ordinates. I guess ent_bonemove must devide all values in the vector (that are returned) by the scale of the model.

edit: Just found out another thing... ent_bonemove also relys on the origin. Rather than the actual bone position.