I absolutely love Cancer's nightmare, been growing it for a few years now. That being said, I got absolutely nothing out of 15 this year, compared to 100% germ rate from the 30 seeds of other breeders. I was messaging someone at Sincity who confirmed the serials on my pack and said they'd replace when they had the time, but that was a couple of months ago and now they won't return my messages. I'm pretty disappointed.
I have a few more packs of their gear, have high hopes with their Blue lime pie, but I only got 4 out of 15 germed. Power nap was ok last year, but 2/4 fems hermed, fortunately I grow outdoors. I think I like Platinum delights but I only got 1/4 fems last year. Kind of grapey, beautiful structure and very dense. Time will tell on my Tangerine power, no time to gamble this year on it, hopefully they germinate when I decide to try