Well Brimstones vehicle mode is awesome, but i felt his bot mode was a little odd in terms of arm/hand limbs. I toying with the idea of building a new hand and moving the fron wheel parts to the other. What do you think?
i was looking at the same hand issue, my idea was to make the three pieces of tire pivot on the spoke so they could be positioned like fingers. unfortunately I have no experience in modding toys and i'm terrified to try