I'm not sure about any subsequent releases like the '00s comics or the Marvel G1 series, but I noticed something in the G1 cartoon. Hun-Grrr & Sinnertwin are both 2-headed beasts in their alternate mode yet Hun-Grrr always speaks with one voice/one mind whereas Sinnertwin always speaks with two voices/two minds. What do people think are the ramifications of that? Which mind becomes *the* mind when Sinnertwin transforms into robot mode? Does he have a split personality that only comes out side by side with his main personality when in beast mode?