When you use the morph brush with a new setting, you generate a new custom parameter dial that can control the intensity of the morph. With that said, how much of a morph change are you looking to apply to the figure? You might be able to get away with it for cosmetic purposes but for sweeping changes, I don't know? Larger projects might require a combination of magnets and morph brush touchups. I can't help you any further, I'm afraid.