Bridgesii, Peruvianus and Pachanoi Kohres seeds have germinated very well last winter, but aren't big or mature enough to test for potency. Bridgesii grafted at 3 months blew up to over 18 inches by 15 months total age. Didn't have enough rooted peres stock to graft em all, maybe next time. If you are interested in growing from seed have you considered grafting to peres to speed up the maturation process? Icaros has had great cacti products in the past, don't know about their seeds though. Also, 'coatl raves about a certain cacti vendor that sells seeds. How did your seedlings turn out? My peruvianus were much fatter and darker than pachanoi or bridgesii, and also tolerated much more frequent waterings.
Growing from seed is probably the most rewarding way to go, especially if you find that magical teacher in there! Best of luck to you!
The above posts are a work of fiction. Tribo and/or friends are entirely fictional characters and do not exist in any physical reality. The activities described by tribo and/or friends are equally fictional and describe hypothetical situations and events that are in fact imaginary. Any resemblance to real people, situations, events, and/or compounds are merely coincidental.