Thank for suggestion, but my friend prefer me to use advanced nutrients products, Grow-Micro-Bloom with the soil and the plants are doing well. Advanced Nutrients product works good for his plant.
He prefers AN over Super Soil for outdoor plants??? I think you should tell your 'friend' to do some research on basic outdoor cultivation. He could save a ton of money, time, labor and end up with better plants come harvest.
Super soil will give you bomb results and it would be a much easier for a guerrilla grow rather then having to hassle feeding plants all the time! Plants that i grew in 2012 were by far much healthier and produced a far better product than some plants my friends grew with liquid nutrients! No hassle with ph or measuring shit out! Just saying bra it would be a better route for sure! And less expensive as well!