I have only used Ocean Forest soil. I use it for every stage of the plant except germination (I use the little spongy plugs for that, had good luck with those). I have five seedlings in Ocean Forest now and they're doing fine. I would not doubt that there are some sensitive strains that might not like it at the seedling stage, but White Rhino, AK-48, Blue Mystic and Durban Poison x Skunk don't have any probs with it. I don't give 'em tons of nutes (if any) in veg because the soil alone seems fine for the first month or two.

All-in-all, I can hardly imagine using anything else, it's been that good for me. But don't take anyone's word for it: try it out and see for yourself.