I have grown the PK off and on a few times over the years. It is sensitive to nitrogen. If your using the 6 month feed MG soil I would recommend cutting it with there seed starter mix and only using a bloom fertilizer as the MG is a little high in nitrogen. Flora nova bloom works good but be light with it maybe at 1 teaspoon per gallon and maybe cal/mag a few times during the grow. I just harvested a PK a few days ago and have about 9 fem seeds left of it. I f you breed with it the purple is dominate and crossed over to other strains pretty good. I have two strains that use it as a mother plant. A really good strain from Buddha sees is there Red Dwarf too. I have a grow I am finishing in the organic section of the RD that's going awesome and about a week from harvest. Your going to love the color. I don't like the smell so much as it smells like it is super high in limonene but has mixed well for me and is amazing when it is crossed.