Raceboy has some good advice and it's obvious he walks the walk. For the most part I would have to agree with what he has said, but being a self proclaimed breeder and production cloner I have mostly the same veiws but perhaps from a different angle. When racerboy talks about bringing in clones from an outside source and the risk of infecting your room he's right, but there's a lot more to it than that. Anytime you bring in ANYTHING for an OUTSIDE source you risk infecting your garden whether that be used equipment, people, plants, or other. Lets just say we distributed seedlings instead of clones from the same facility, if we didn't have our rooms in tip top shape we would be putting our patients in the same risk category as with clones. An infection is a infection regardless of how it arrose. I do realize that there are very few if anybody who distributes seedlings much like we do clones, so I guess it's easy to argue against my point seeming most everyone deals with clones.
As far as the best OG genetics goes, this is a topic that will have a bunch of oppinions so it's probably best to do your own research AND take in what other people have said and make your decision based on that. It seems like every breeder has at least one OG Kush pheno they use in their genetics (okay maybe not Sub), and most everyone feels their cut is supperior to the others. Our garden has a bunch of OG Kush genetics ranging from SAC#3 to Platinum OG Kush and each one has it's advantages over one of the others. With most OG Kush pheno's you're going to get great potency, moderate yield, and pretty good stability. However there are definate phenos that are exceptions; Swerve's Tahoe OG doesn't yield that well at all compared to most other OG Kush varieties. Our SAC#3 is amazing in every way except the yield, but we don't grow it for yield we grow it because it's some of the best weed I've ever seen. We have a Platinum Purple OG Kush that we bread ourselves, it yields extremely well, is as stable as stable gets, and is just as gooey as anything I've ever seen. Like Racerboy has said earlier there are cuts of OG that you should stay away from, as well as the rest of that breeders lines due to problems that have occured over the years. Every breeder is going to run into issues with their genetics from time to time whether it be the stability of them, the potency being bread out of them, or other issues that plague them, it's what they do with the issues and whether or not they get resolved that makes all the difference to the patients or customers.
If I was going to grow only one OG Kush phenotype or cut in my garden and did not have access to some of the more rare cuts I would grow Chem Valley Kush from Cali Connection. It's a good stable representation of what OG Kush can or should be like in my oppinion. Matthew Riot (love him or hate him) has some good genetics that are worth taking a look at such as Black Mango Kush, pre 98 bubba kush crossed with SAC#3 and Platinum Banana Kush. We received our SAC#3 cut from another breeder who has ties to the same cuts Matthew does. Riserva Privada's OG Kush #18 is another good one as said above. Anyways like I said earlier when it comes down to the OG Kush line you're going to end up with as many different oppionins as there are claimed OG Kush cuts in this world. LOL! Good Luck with your venture, and I hope the dankest of dank finds it's way into your garden!
Stay Medicated,
West Coast Cultivation
PS: Sorry if my post is a bit jumbled this SAC#3 BHO is making my fucking head spin, probably not the best time to give advice...