Metromix 300 series, watering

[The Toker]

I just got Metromix 300 series soil buy Sungro and was wondering if anybody else uses this. It has a long lasting wetting agent and was wondering how often you have to water? I do not want to over water, and this stuff seems like it retains moisture well :confused2::confused2:

 

[The Toker]

And still the moisture meter is telling me that the soil is moist.
Still waiting to here from somebody with knowledge of this product.