I think he's the one who did it. A few years back there was a Rodimus design done. It included a full redesign with a detatching Hot Rod. I've managed to find (on his homepage, I think) images of the larger robot mode and the vehicle mode. What I can't find is the smaller robot mode or the transformation-steps drawings. I also remember someone working on a kitbash trying to replicate it. Was it ever completed? Thanks!