My experience with OG#18 is she's easy going in veg real vigorous starting off but once I put her to flower just couldn't keep her happy. Don't get me wrong She's definately a GREAT smoke but could only pull an average yield off her 1.5ozs and had to baby sit her all through flower. I much perfer DNA Kushberry (my all time favorite strain) or Reseva privada Sour Kush. Now if your looking for a big yielding OG cross without compromising taste and potency the best I've found so far is Cali Connections 818 Headband!! I pulled 3ozs of some dank ass bud without even trying. Very easy to grow and produces some top notch nuggs!!