**odf**, I seem to have found an asymmetry in the 125 hip2, where it meets the thighs. In the above (zero pose)  image the individual actors have been xScaled down to 50%, the dotted line shows the mirrored shape. It's not noticeable until the xScale gets below 75%, and I doubt anyone would ever want to go much below that, so I don't think it is a serious problem. I haven't had time to investigate the cause as yet.