Im definatly hoping for half a pound per plant ahah, but i really doubt I can pull that off.

Although i do have a question for you guys..
I am currently using Pro-Mix 4 and Pro-mix 1. I know they are soil-less mixture, and very fluffy might i add. However, Should I be adding and mixing it with topsoil since it has no nutrients? Or should I just feed them through watering?