I swore by roots excel, but after I tried the rhyzo I never looked back. Seeds, clones, transplants, it works on them all. For this run I cloned 8 querkle airoponically for 4 days until root bumps formed. They went from there into one liter pots with 1/4 strength nutes and full strength rhyzo. 5 days later they were dry enough to water again, and roots were poking out the drain holes. I watered half strength, let them sit 2 more days, and transplanted them into the 15 gallon smartpots. So in only seven days after first transplant, and 11 days from cutting, the one liter pots were rooted out to the point were no loose coco fell off when I pulled them out of the pots. It took 5 more days to see roots growing out of the sides and botoms of the smartpots. It was at this point I realized how great coco, and canna is. I popped 4- AK47 and 3- white widow seeds a month or so ago, and I've already taken 52 clones off of them! I'm sexing them right now. I've done s lot of seed popping and cloning in my day, and I don't know if it's the coco, or canna nutes, or both, but I never saw vim and vigor like this. Good to hear about p/k first hand. Just like you said, I've heard people say they have had great grows with just a/b, and others say p/k makes all difference. What hooked my was all the positive reviews by people who used other companies bases. Says something when p/k is so universally liked.