In an old issue of Citadel journal, when a ganger was implanted with the stealer gene they were 'released' back into their gang with 'implanted' as their stated injury. Before each gang fight, the ganger rolled a d6. On a 1 he/she leaves the gang permanently to start up his own little stealer family. I always liked that rule, annoying if your heavy does a runner but fluff wise it was awesome. If it happened to a Spyrer then surely he strips off his gear to go and fornicate with the proletariat! I'd like to see this rule in the game. Also rather than letting a purestrain implant it's enemies willy nilly on the battlefield, how about implanting only captured enemy models. In that way the gang can mount a rescue mission before the horny old Stealer gets the scented candles and Barry white CD on. After that, the ovipositor is going in like it or not!