I decided, upon seeing the black wash first hand, that Grimlock needed the effect continued over the rest of him so I decided to panel line him. This is only my second panel lining project. The first was Cybertron Vector Prime. I used India ink paint pens (well, one pen, super fine tip). Once I have the ink on the plastic, I dab and smudge with a cotton t-shirt (black, obviously) so as to wipe off excess ink and push the rest into the crevices. Alt mode & gear: I took some advice from Matrix Soul (found here) to add a sword handle to the blade.