Gene X is very subtle on its own. I visited Justin's place back in October and he was kind enough to show me a single gene Gene X. I know it was something he spotted in his collection (I think it might have come in as s "dinker" from Aftica, but I can't remember what exactly Justin said about how it came into his collection). I don't know if he sold it to anyone yet, so I don't know if anyone else is working with Justin's Gene X. It makes some fantastic combinations, especially with Pied.