If I had to postulate on what kept them from bloom, I'd have to say temps.
Here's my reasoning:
1.)you used those nutes before, and they bloomed
2.)you had really high temps...and high temps can alter/halt growth
Now, the high temps can also alter the way nutrients are taken up, etc. So perhaps the high temps were somehow making the plants nitrogen rich to the point where they couldn't bloom? I dunno.
All I know, is that it "seems" that in high temps, a CRF works very well.
Doc, I'm thinking it's kinda like real estate, depends on "location, location, location" and all the stuff associated with location LOL
Also, I'm going to venture a guess that the OC+ and Purple DM plants end up taking longer, but yielding more. Those leaves.....get plenty sugar factory, brah!
My Skunk/SourD plants took a long time to finish too....but it was well worth it, imo.
We shall see!