Hey Brother Cronic!!! hows it be?! hope all is going ok for ya!
The GG I picked up in clone form from a local dispensary, and overall the yield absolutely sucked, but the flavor and smell is magnificent! From what I have been learning about seeds, and the more that science comes into our industry, it seems that there are no seeds on the commercial market today that breed true or otherwise known as isogenetic. Most seeds are F1's which have a ton of variation and its actually very small percentage that the actual seed will be like the original. I've even found seed companies that take a strain, lets say blue dream, and then they hit it with a completely different parent (lets say og kush) and then they name the offspring Blue dream... which obviously isn't the case...
In the future we will have true breeding strains from seeds as the industry emerges, but right now, I could say probably 99% of the seeds on the market are always going to give a different genotype and phenotype expressions than the parents. Until labs, with PhD molecular biologists with hundreds of thousands of dollars of equipment come into the industry, seeds will continue to be a crapshoot. From what I understand once you get around a F7 seed, then you have a good chance that the seed will breed true, or close to true if its been selectively imbred for certain traits, however still unless actual genetic markers are used, there is still a lot of gamble. The more I learn, the more I'm kind of bummed making fem seeds in hopes to preserve my genetics, as each one will roll the dice with the genes to the likelyhood of any of my selfed, fem seeds being the same is very unlikely... so now it makes me think once I finish my round of F1's and S1's, I should select just 2 strains and start working them to help select the traits I desire
Clone and tissue culture right now are the only ways I'm aware of preserving exact genotype, except for the fact that epigenetics can also play a role in this, and through just my lighting experiments I've seen this happen with different spectrums and how a plant expresses itself.
Interestings stuff though!