I use a moisture meter too. I love it. It takes the guess work out of which soils are holding water. I think it matters which meter you buy. I've used some of the cheaper ones and they don't really tell you anything. They have really bad accuracy. If you spend more then $10 you can get something that will give you some reliable information. I have one of these meters: http://www.vegetronix.com/Products/VG... and I really like it. It gives temperature and light too, but the important part is that it gives really accurate moisture readings. Do what you want, but I'm sticking with my meter.