I would go with coco bro.
Just tryed the whole soil thing and had problems! When I asked about them it was real hard for people to tell me what was going wrong because you don't know exactly what is in your soil and really limits the help you can get. (Im a First time grower). Thousands of people use coco so with pics of your plants on the net the prob will get sorted real quick.
Alot faster turn arround while fixing problems because its easyer to change whats in it compared to soil.
In the end i transplanted to coco carefully washing all the soil off the roots as not to damage them and started seeing inprovements within 12 hours. My plants are 4 days since i transplanted to coco and the difference is amaizing where groth was almost non existant in the soil.
I was useing Mirical grow vegtable and herb mix (never again)