Our very own OG is full of such useful information, the amount of knowledge and skills here are phenomenal and far more expansive than any book I’ve found.
Have a browse in the grow faq, it’s full of gems like this:
Exactly my friend, a line is stable when each of the progeny has the same alleles at the same loci…. When you breed with lines like this, you have known and consistent variables, meaning trait selection is easier Otherwise you end up in effect playing with variables about which you have no idea, any kind of whack stuff could and will come out, you may have some variations that produce very few trichomes for example, I have seen this numerous times from the dankest gear, most everything else is there, just hardly any resin glands🤷♂️
Of course it’s a double edged sword because not all ‘whack’ expressions will be bad, some may be amazing, but let’s say you get one in 50 that is exactly what you want, next round you will need 50, and perhaps you get 2 or 3 that don’t get culled and so on…. Pretty soon if you are not careful it’s easy to bottleneck this way, small numbers and heavy selection pressure etc, this all your eggs in one basket approach is not ideal and likely will make it difficult lock down traits imho, bigger populations are always better, but of course this is difficult in a grow tent…