which one(s)? i don't work in the industry of science, but i do have some modest interest in crisp-r, and its potential, before the current plague came along (and wore filter masks to avoid second hand tobacco smoke inhalation, which was why i just happened to have already had some on hand) i know that d.n.a. 'gengeneering' helped materially shorted the development cycle. and that they seem to be working. haven't gotten mine yet, but intend to.