As guerrilla plots are often hard to access

they dont get visited that often (speaking for myself here). So the temptation is to give them twice the recomended dose of feed to make up for the fact that you wont see them again for 3-4 weeks. DONT do this. I think I actually nute burrned one of my plants by giving too much potassium rich feed

. Your best bet is to do as stickybud says and dig in plenty of compost, guanno, genneral purpose fertilizer before you plant. Text book says to do this as early as possible (like now) but im gonna experiment with just digging, improving and planting all in one visit next spring.
And remember you cant get big plants just by feeding lots, you gotta get them off to the best start possible, look after the roots (big roots mean a big plant

) Start them as early as possible indoors if possible or outside with frost protection. The first month in the ground is far more important than the flowering stage for getting lots of budage. Water them plenty when they are young if its gonna be a hot day. As your plants get bigger will require more food but will get even bigger

If you havnt yet read through Magoos 2008 + 2009 diarys.
Wow think im gonna copy and paste all that lot onto my harddrive before i forget it
Peace
Wake 'n' baker