Spot on! The real advantage to using their organic mix is that it runs about like this:Seems to me the sunshine growers organic is superior to #4 from what I can tell because of the coir content. It's a better consistency and I find I use little perlite now. I am considering going to a larger size of pumice along with the 1/4". I hate perlite
Smiley
40% organic coir from Sri Lanka
30% organic Canadian Spangham Peat Moss
10% each of the following: perlite, vermiculite and pumice
pH adjusted with gypsum which is preferred by many organic horticulturists
Treated with yucca extract as a wetting agent
Then there's the pricing - about $19.00 for 2.8 c.f.
Consider that any of the Sunshine Mixes (#1 thru #4) 'should' cost $25.00 which it does at a nursery supply house. At a grow store/indoor garden center the price almost doubles to $48.00 before the 'bro discount' from DuhDude. Insanity.
Now if you wanted to go purist you could buy the organic Alaska Peat, organic Sunshine Just Coir, pumice and make your own. You could put together a base soil for about $3.20 per c.f. if you had the time and interest. I don't.
HTH
CC