The thing with scaling without morphing is that you can get some weird lumps... it's more noticable on Michael, because of the way the mesh is... Victoria's arms are a little more forgiving... you can see it here... I set his arms to the same as hers are in the above picture, but you get that weird ridge at the top of his arm... I've managed to get a slightly better result by leaving the shoulder at 100% but scaling down the forearm further...