I have Clarke’s book and I really like it. Simple enough to be readable but deep enough to be rewarding. Recommended.
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@Mithridate loves transgressive segregation, he may know more…
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Picking extreme phenotypes is exactly what it sounds like. You pick the ones that stand out to you, the ones that have the most extreme smell or crystals or potency or whatever it is you’re looking for in a plant. Propagating asexually can either refer to cloning, which is of course a useful tool but doesn’t necessarily have much to do with breeding, or could refer to selfing. I’d guess selfing, because in extreme phenotypes that would have a high chance of locking down the genes you’re searching for while exposing the potential flaws from negative recessives.
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Selfing and ruderalis are the two reasons I don’t do trades or take in outside genetics.
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Lots of the extreme phenos have a good chance to appear when selfing, when your ar S2 your extreme pheno starts to stablize and its often due to double recessive traits. Lots of people seems to think that a recessive trait is something bad, but it doesn’t have to be a bad thing, sometimes the thing you like for example large trichome heads, are a recessive trait or even a double recessive trait. So if you still want it to be a factor in your cultivar. You need to know how to breed to still have those recessive traits left in the offspring.
Pz 
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Let’s do a scenario then using transgressive recurrent breeding practices.
Get some THH x Deep Chunk = Lots of Heterosis
Take F1’s x F1’s = F2’s. Go pheno hunting for this is where it gets down to your observations. Pick the F2’s that meet your extreme criteria. The 5%. Potency/Quality of high
Then self the F2’s or F2 x F2 or both?? and look for the phenotypes that meets the criteria for the ideal mental effects. Will these cause more extreme segregation or?
Have to have a list of morphological characteristics that point you in right direction as well as testing these F2,F3, and so forth. What generations are we using before the homozygosity is too high?
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Bottle necks the genetics and the plants get worse each gen.
Whereas using a male prevents that.
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This sounds exactly like what is done in the industry today. Find an exceptional phenotype and it becomes and “elite clone” propagated asexually.
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Filial degeneration = increase homozygosity each successive generation no? That is why Skunkman and Tom say keep the original S1 and f1 f2 nd etc. Tony made a mention of it too
This technique has been used for thousands of years… ancient Chinese growers were using colodial silver for just such purposes. Although this is a common method, and useful for isolating unique genes in the short term, it is not an advisable method of breeding or longterm crosses.
When one only picks the best looking plants and crosses haphazardly too get the best results, the results are often poor and the lines becomes bottlenecked or run into the ground. I personally don’t work with east Asian cultivars for just this reason. The Thai type stuff is much better because, Id assume, it originates from a handful of original cultivars that have been worked for generations, opening up the lines.
To properly work a line, the plants need to be homogenized, worked together for several generations, not just crossed in the hopes of getting a good result. This isn’t a shortcut, in fact there are no shortcuts…breeding takes time and patience.
I feel that if one were to go back to rework the east Asian varietals, using proper technique, some very special cultivars could be created, and possibly some older genes could be reintroduced to modern populations.
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Well bust out your adjustable floros and drop A few thousand seeds.
According to you you should have it handled within A year or so.
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Luck might play into it but not sure what the mathematical model would be? I guess whatever breeding methods you are using 
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All good stuff brother. Selfing idiotype is the more direct route it genotypes parents in a single generation you know by the offspring of selfed parent how homozygous the parent is. Screw morphology, put it in the pipe. An over abundance of homozygosity (inbreeding depression) will be reached in different generations for different parents. When you reach it, back up one step.
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This is correct. And no, nothing last forever. Ruin it fast or slow - take your pick.
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T5s and 3 tier racks is exactly how I rolled to go through 1000s of plants on a budget. 
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Through flower?
Could you give a little more detail to satisfy my curiousity? 50 plants per 4’ X 20?
It sounds like a lot I can barely manage 4 
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Yes.
When grown under t5 in high density you will still be able to tell which has what type of high, which has the taste to go with the smell, and who’s crap once smoked.
The main difference will be the look, buds on some varieties can be fluffier, and usually flower times will be extended by a week or two. That’s it.
Understandably, once grown under strong lights, tastes and smells could be amplified, and a second round of culls is then needed.
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I mostly use 5" square pots because they fit nicely 8x per tray. I give them 3 weeks of veg, or enough veg to be able to take a cut and flip.
32 per 48x 20…
In some extreme cases, I do 18x 3" pots per tray, no veg and reveg the ones I think are worthy of being given more space.
72 per 48x20…
A 10ft wide x 10ft high x 2ft deep 5tier rack will give you room for 50 trays. I built one in an apartment, disguised as an ikea wall wardrobe thing, passed inspection and all
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