Day 8 - I decided to go do surgery on Velvet Punch B,C,D. I took scissors to B. Here the cotyledons were stuck together at their tips, trapping a leaf from development. I clipped the very end off and it was like a spring. The trapped leaf was free, but very contorted. For B, I was able to use my fingernails and pry them apart. The plant had the same reaction, it popped open with a now-free twisted leaf. For C, it is probably a lost cause, this one was just a seed with a stem. I pried that seed open and off of the inside mass. It stayed is the same shape of the seed with no expansion.
@Togoutouseg,
It's just luck of the pheno. I am growing 4 of them, and only 2 are so dramatically black/purple.
These are tester seeds for a breeder who is still trying to work out the kinks for this F3.
@Jack_Greenstalk, Thanks for stopping by. Keep me on your tester short list. I'm not a huge consumer, but I do love growing and photographing them. When they are testers it seems to give me more sense of purpose.