I dunno. The only seed bank I've heard much about is Herbie's Seeds. Reviews are mixed. Technically, Herbie's Seeds is a clearing house or middle man for other seed banks. The mixed reviews mostly concern the germination rate of Herbie's Seeds. Best to get lower cost seeds and just try and germinate 2 or 3 times your intended number of plants. One thing I've read about, although it's one person's opinion, it's best to get marijuana seeds in the fall, after harvest, then let the seeds sit around for a few months. Like maybe put them in the garage. Letting them sit though winter might help them germinate better, since it would somewhat follow nature, in that seeds would normally drop in the fall, then sit around for several months of winter and then germinate when the soil got warm enough in the spring.