Abstract: Machine(s), method(s), and media involve receiving at least one network-based communication regarding strain-related characterizing selections; generating at least one ad hoc matching calculation weighting system based at least in part upon the receiving at least one network-based communication regarding strain-related characterizing selections; using the at least one ad hoc matching calculation weighting system with strain candidate data stored in the at least one database to at least in part determine at least one strain candidate score for at least one strain candidate; and outputting at least one network-based communication regarding at least one strain recommendation based at least in part on the at least one strain candidate score. In addition, other aspects are described in the claims, drawings, and text forming a part of the present disclosure.