Quote Originally Posted by Sinnertwin View Post
Grimlock should be a head or two taller than Optimus in robot mode. They're compared on the 3rd row of the cartoon scale guide here.
http://www.tfw2005.com/boards/transf...ndwave-20.html
I would agree with this, basically mp01 and megatron were the only few out as they were scaled towards the binaltech series.

Wished they had everything sorted from the start.