The fertilizer that Richard has come up with is named "Blue Dawning". I do not believe it is yet commercially available. The last I knew Richard does not have an email address.
Bob, Richard listed several other species that grow in association with the ultrafamic geology, and Darlingtonia is indeed one of them, as is Dionaea, D. binata, D. graminifolia, D. gigantea which are at least tolerant of serpentine, whereas D. capensis is quite intolerant. He also noted plants with a blue/green look seem to be responsive. Other possibilities include N. villosa, and D. hamiltonii.
Some other hints for growing large Cephalotus is to maintain high humidity during pitcher formation. Once formed, they can actually take much lower humidity. Also recommended is misting at night during the warm months of active growth, tapering off in the cooler fall and winter months. This encourages the initiation of pitchers as the plant senses optimal conditions of high humidity, and responds with the initiation of pitchers.
As to the advisability of growing the baby plants in the same pot as the parents, if Richard's theory is correct, then this seems a logical step. This is assuming the mycorhizae are present to begin with. If not, there can certainly be other colonization by fungi other than in this coordinated and directed symbiotic relationship. In these instances it would be prudent to begin anew with fresh media to avoid a possibly parasitic relationship. BTW, the symbiotic effect is only realized in a high cellulose (sawdust and peat) media, and the fungi may become parasitic in live sphagnum according to Richard.
I agree that there are genetic variants predisposed to larger pitchers, but it will be difficult to assess which factor is in play: genetics or environment. I hope that Augstin's research brings to light these possible variants.