I think the best way to put it is the morph from Bruce Banner to The Hulk
The onlly problem would be with huge Transitions , the bone do not follow this transition So it will endup in wrong Jonint defomations
In DAZ is a nice option , called adjust rigging to shape , but such a Option is not in Iclone, unfortnally you will get crazy defomation results, if the transion is too big