I read the thread at Icmag, thanks Azra'eill. I disagree with Tom Hill, that 1:1 breeding is going to wind up deletariously limiting the genepool, especially since Marijuana is so much more complex genetically than other crops. This is ridiculous. Look at humans for example. We are the most genetically complex creatures on the planet, yet how do we reproduce ourselves? you got it, on 1:1 ratio, so Tom hills argument doesn't really hold water in my opinion. If you look at the higher species on this planet, from insects all the way up to us humans, you will see that we share one thing in common when we reproduce sexually... that's right, we all reproduce according to a 1:1 ratio. Also it appears that Tom hill makes the mistake that most beginners make as a breeder, and for someone who has been breeding as long as he has, I would think he would have outgrown this simple Prejudice, He culls his plants according to the shape of the leaf.
That is really sad.
Using purely open pollination for breeding is akin to taking all of your seeds, and storing them in the same container, on the one hand, that container might have a higher level of genetic diversity, but on the other hand, you won't really know what you have.
If you are breeding for typology, generally speaking, a 1:1 breeding ratio is truly the way to go. There are many techniques you can use in your program to eliminate deletarious alleles and insure that your strains don't become inbred.
It seems evolution has singled out species that use a 1:1 breeding ratio for greatness(take me and my dogs for example).
Perhaps we can learn something from mother nature and help our plants take this apparently superior evolutionary path.