Great post!!!
I would like to add my 2 cents. When your adding the water if you add equal parts of water to substrate by weight it should get the mixture near perfect. now here is my super secret method:
put the empty egg tub on the scale, zero the scale. Add the dry substrate taking note of the weight. Then add the water until the weight is double what you started with, voila perfect amount of water.
Also, you want your substrate to be as sterile as possible so working with latex gloves or really clean hands is worth a mention.
Richard
