How much is two much ?

hey fellow growers, just asking for comparison and ease of mind. How many plants do you guys have per spot ? I have a dozen spread over about 50 sq feet. There spread out a bit and not in any kind of formation. I live in Canada and they have infra-red equipped helicopters that usually probe around here and there. Is my crop in danger of being busted ?
I have six in vpw 30 bags spray painted black and the other 6 in regular black pots.

Thanks guys !

I have never guerrilla grew myself but i can tell you that you can never be too safe.
Keep a spare pair of clothes and shoes in a black bag up a tree.
Never go directly to your grows spot and take a different route each time if possible.
Pay attention to wildlife. (spooked animals are the best indicator of nearby people)
Check for foot traffic, any trails or footpaths mean that people often go back there.
Keep your plants hidden among foliage, most people wont know what a marijuana plant looks like unless they are searching for it.

These are just a few suggestions to keep you safe

Thanks for the tips !