Ive never been one to run an out of the bag soil mix.Well, this is my own little "mix" they are growing in and its a pretty high porosity mix.
I took 20 gallons of promix bx and mixed in like 6 or 7 gallons of perlite, and 1.25 or 1.5 cups (cant remember now, think it was 1.25) of gaia green 444 and let it sit like 2.5 weeks.
I expect to be watering daily once mid to late flower starts.
Im in straight 707 in my 4x4 and have had nothing but issues with it.
The only bagged soil i biught i liked right out of the bag was mother earth groundswell, but the price went thriugh the roof so i stopped using it.