I also use the pot lift method. However, a better way is to use a moisture meter. I use mine daily to check out the girls. you can get them at any hardware store or garden center. About $10. Its also not such a bad idea to really stress the plants by just letting them dry out between waterings. Let the leaves go limp and then water them. It is interesting to watch how fast they plump back up again. The stress also causes the plant to want to reproduce more, since it thinks it is dying. In other words an increase in the resin that we all look for. Hope this helps. Dr. Bloor