You said this, "Conclusion: Inbreeding causes worsening of boble head and increased kinks in the respective morphs"

While I understand what you are trying to say, but you are incorrect at the roots of your argument.

Line breeding/inbreeding could just as easily improve these traits, if you have the right stock to work with. But you are also correct that inbreeding tends to make it worse, but this does not mean that the inbreeding is at fault only the originating stock. There is a saying amongst the ganja growers out here in Cali, "Your bud is only as good the seeds you grow it from". Same goes for this argument.

Line breeding is a means of boiling off the undesirable traits within a population, lowering diversity and creating a stable strain which will breed true. In order to achieve full homozygosity I believe it takes 21 generations or so(don't quote me on this, didn't look it up, just going off memory) and this is what inbreeding does and is the reason it is so helpful in regards to breeding projects.

Outcrossing on the other hand has the goal of heterosis in mind, otherwise known as hybrid vigour(hybrid vigour doesn't necessarily mean an interspecies hybrid, usually in biology it just means crossing two lines that have been inbred seperately together). The goal with heterosis, is the widest amount of diversity and unlike pairings possible.

Hope this helps,
Dan

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