The Hotyonium literature states that the more malleable a projectile the more kinetic energy is transferred to and used to penetrate the target. I do not believe this to be true. The more dense and rigid a projectile is the more it retains its kinetic energy allowing penetration until an equal and opposite 'push back' is reached. If a projectile is very malleable the projectile flattens against the target displacing the kinetic energy over a larger area with less kinetic energy applied against any single point of the target thus less penetration.
