Took me 2-3 grows to realize some sort of bloom accelerator for my autos were necessary (almost doubled my yields in a 26" ft box & PC case w/UFO LED for flowering).
I do use my own organic mix for my soil and Gen Org's for my base nutes, and lots of bubbled Hi-Brix molasses from EJ (they are all absolutely necessary for taste, aroma, general health and resin production in my case).
I just use Kool Blooms from GH right now, start the liquid at around 30 days, finish the last 2 weeks or so with the dry formula (you only need 2.5ml of each per feeding, if that, per gallon of water). What I bought will last a long time.
Much thicker buds over-all more than anything. I will eventually switch to a more organically based booster, but Kool Blooms work just fine.