well i do not like the animated soundwave head. i am not alone on this lol. anyways the head measures a little more than 1.5 mm across and 1.5mm tall. i am sure i can go a little bigger a g1 soundwave head is way to big . i was thinking maybe a titanium head but not to sure how big it is i think it may be to small. i could resculpt the head but would rather do a swap if i can find a suitable head to use. any help would be appreiciated.