That's a good idea. I always wondered, how the V4 fig. would be (as in bend, plausible posing ... ) if there'd be the one or other bone more in the neck and in the torso area in general. I always thought that the two abdomen and chest bones were a bit to few. But then again, knowing nothing about rigging, topology etc at all, I never knew if it would be even necessary, to add more bone to this fig. .. and since lacking these skills, I could never try it myself =)