I have been using Gaia Green products for a number of years now and have been so happy with the results I will never consider anything else.
I have also compared between the organic and non organic
https://www.pthorticulture.com/en/products/pro-mix-hp-mycorrhizae/ . I prefer the non organic .
I use just the pro mix hp for seedlings and sometimes add some EWC , but usually just the pro mix. I transplant into the pro mix HP with the added Gaia Green products just before , or just as the feeder leaves start to yellow.
I use the same mix for ALL new strains and tweek for individual strains once I get to know them and their needs better.
To each 7 gal of Pro mix HP I add the following.
2 cups of EWC
1/3 cup of Fishbone meal
1/3 cup of power bloom+
1/4 cup of Alfalfa meal
1/3 cup of crushed oyster shells
I water the 7gal with Blackstrap at 1tbs per gallon before planting in it. I also water with the same rate of blackstrap molasses at flipping to flower and again around week 4-5 .
The costs compared to running bottles , especially AN is ridiculously low and the finished product is not even comparable. The key to keeping the costs down is buying in the largest size bags available which are 20KG .
I cannot recommend Gaia Green products enough to people. Really great quality stuff that doesn't break the bank.
Cheers