Lowbrow and Cali, I think that the media has a great deal to do with the success of "dialing back two arrows" ability to hit a good moisture content. I've had better success with getting the media to the moisture contentl that I want, and then just dialing to a cling.
I don't think any water ever came out of the drip line in these 3 pots, because if they had started dripping and then the cone went dry, wouldn't I be flooded? It seems like unless the dial was completely pinched shut at initial install, it would be a runaway.. no?
The reason I'm thinking this is because when I was repotting some plants that already outgrew their pots, I pulled the cones and closed the dials tightly, and left them there to take the girls to my work station. When I came back 15 minutes later, all four cones were emptying water on the floor! Oops.
It was no biggie, 20 minutes with the shop vac and most of that time was fussing with the vac itself. So what I'm thinking is this: if the water in the cone even starts to empty out and dial isn't completely closed, it'll flood.
Does that make sense? Or am I on the wrong track?