Athena AG on using this?

[MasterDsKush]

I want to use Athena ag I’ve heard some amazing things about them in power si but instead of power si i was going to use stout msa if I’m going to be using all this should i add amendments to my soil? Or should i just use coco / perlite or just stick with roots 707 with my regular added amendments?

 

[MasterDsKush]

Also i was thinking about just using the top dress not the liquid stuff besides stack for a foliage spray?