I've been told that spin characteristics are defined not just by CofG location, but by weight distribution, such as a lump of lead added in the tail. Is there any validity in this comment, or is weight distribution totally taken into account by knowing CofG location
As mentioned by
DAR it certainly does, think of a skater doing a spin with arms outstretched who then brings the arms in close to the body, the centre of gravity is unchanged but the rate of rotation increases, angular momentum at work.
DAR and
Genghis would be able to give an explanation into angular momentum control/stability issues.