this is just flat out incorrect hempy ,If your starting with 20 or more true F1 seed from the Breeder and you find 1 or more special plants and run clones for some years in or out doors you have a good understanding of what your working with.
Look at Nevil Hammer he got how many Haze seed to germinate less than 10 and from them he selected HzA and HzC that went on to produce some of the worlds best haze hybrids that are still prized in peoples Gardens all over the world.
Numbers mean very little selecting quality and working with quality genetics to biggin with is the impotent part.
come on man you must be kidding right??
its all about numbers ...