I cannot find it now but I read recently you were unsure about the lineage on Master Kush. I recall reading recently it was a cross of Bubba Kush and OG Kush
I really loved that Master Kush plant I had and will probably grow those bagseed out really soon. I have about 15 or so left I think. I remember the one fellow I shared them with remarking that they were worth growing out and thanked me for them when I next saw them.