In my experience that species takes five years to reach adulthood. They will die if handled much at all. I don't think much of anyone is aware of how long it takes them to mature.I am also interested to find out of there are any hobbyists out there keeping Cryptocercus punctulatus.
Lobster roach is the only roach that I am planning to breed as feeders. Other roaches are for studying their behavior and their life cycleLucanus, are you using most of your cultures as feeders?