ph is getting like politics we all got our own opinions
Unfortunately, if you get around the forums much, one could easily draw that conclusion.
Science is not influenced by opinion. The problem is that most of our members don't understand much about pH or why it seems unimportant to one person, and of paramount importance to another... on the surface it seems like there are successes and failures from both camps... so, people experiment.
It's pretty safe to add lime at the amounts that have been discussed, even if you don't need any. It's still not going to drive your pH above 7.0. When we look at a pH chart, we see that most of the more common lock-outs are toward the bottom of the pH range (below 6.2).
Back to the original question... Roots or

...
I haven't used Roots. Before I started using my own compost, I used

OF and never had an issue. I always pH'd my water and buffered the fert mix before feeding, but I never checked the mix itself. I quit using it because of anxiety about future grows, based on all the negativity about it and because, once I started to understand a little about organics, I realized its easier and far less expensive to go TLO.
