I've never been able to try them but I have used Masswhole 5pepper/super soil & Coast of Maine Stonington blend
Both of which are great for auto's on a water only diet,
I've done both at a 50/50 ratio with Masswhole brand potting soil for the masswhole run and Roots organic and/or Masswhole brand potting soil for the coast of maine run.
I've also done a nectar of the gods [HASHTAG]#4[/HASHTAG] potting soil 1 bag in a earthbox and two Mephisto Beary Whites females and those girls seemed to be pretty pleased with that medium and water alone.
I'm gonna be trying a 75% Coast of Maine Stonington blend and 25% Sunleaves chunky perlite in 7 gallon root pouches and or pots, I decided this based on advice from an informative grow store worker who said he's running his girls in 100% Stonington blend with great results thus far.
Yes both are super soil and both preach water only. Kind soil advise outing a regular base media on top of kind soil because planting directly into kind soil will burn the plant. Sohum I believe you plant directly in and water only
I am a total newbie, but from what I've read on supersoil is that plants grow more slowly VS liquid nutes... Which I can't image would be good for an auto with a fixed life cycle...again I am new with little experience, none with auto's, so plz dont STONE me (or do, lol), but it just sounds counterintuitive....