Board Thread:Warhammer 40k General Discussion/@comment-6078851-20130318203252/@comment-6134883-20130319150045

Isn't it in the Gaunt's Ghosts books? Anyway it was just a suggestion.

Your point about the Lion is well taken. Manus and Russ have similar backstories I believe. Apparently raising themselves worked out well for those three. Possibly because they were basically more stable than Konrad Curze to start with. The Primarchs were not all alike. Evidence suggests that some of the Emperor's genetic meddling was more successful than others.