I would never use FFOF for clones, bro. Only for Moms and Flower Transplants or Established Rooted Cuttings(Edit: by which I mean previously been in dirt, not straight out of the cloner). I would recommend going Coco and pre-soaking in 1/2 strength nutes for cuttings. I was having trouble with mine until I stumbled across a Coco cloning thread. Make sure you squeeze all the excess water out, because if you use a dome, you will see mold. I'm knowledgeable because I've fucked it up a few different times
. I have a recipe for home made cloning gel, too if you would be interested. I can't speak on Roots as I have never used it, only FFOF, coco coir, and an organic soil sold at the local Depot. I have heard of FFOF having bug issues in the past, but I thought they had fixed this. I purchased a bag about a month ago and didn't have any issues at all. Prices went up again, too. BTW, thank you for doing this comparison grow. I've been lookin the The Purps for about a year now, so on the fence about it. GDP or Purps will be my replacement for BB, as I am seeing more and more people having herm issues and no true representations of the expression that everyone looks for, ie color and taste. Looks like you have nute burn in quite a few of your pics. If you are interested in cutting back, I would mix in about 15% native soil (kinda cold for that right now,) or else using bagged top soil or no nutes coco. The ladies were beautiful though, and I SWEAR I smell them through the screen.
Keep up the good work, my friend.