While we were all hmmm'ing and hawwww'ing, trying to figure out what, exactly, a plastic Carnifex was exactly supposed to look like, Moloch was lucky enough to already have his hands on the kit. Never was this relationship more decent than in the run up to the 4th Generation/Edition Tyranid release.
In the Piece of the Hive Mind introduction, I mentioned that Moloch used to have a pretty decent relationship with some of the lads in the Studio.