Main reason for change is boredom. The same reason I've gone through most popular methods of growing over the years. I tend to change methods every few years and I pretty much like all of them. The thing I didn't like about rockwool was the rockwool itself. Didn't like handing it, presoaking it, buying it every round and throwing it away. The benefits of coco I see in the way I grow are that it's reusable from what I can tell indefinitely. I have been reusing for five years and see no reason it can't go another five. Setup between crops is easier, just pull the old and throw in the new. I grow large plants now and it's easier with coco. I grew large plants in 7 gal pots using rockwool flocking hand watering dtw for a couple runs, worked great but still have the waste issue. I like handwatering, I believe I have a better relationship with each individual plant. Im growing these things for months , training them almost daily and getting 2 to3 per plant. Completely different strategy than with rockwool drip. I seem to stay more motivated when I stay busy with the garden. When I was running hydro and everything automated I would get lazy because I knew I didn't have to do anything. I'd go days at a time without looking at them. The way im growing now is hands on everyday, the plants need me. With all the different ways I've grown plants I could go on for days.