I think almost internet caffee here in my country are using i7 cpu so if you can install 50 miners in 50 cpu you will be big time earner because you are not the owner of internet caffe and you are just install it auto run everytime its restart..
yeah if it is i7's it is better.
give 5 cores for mining and 3 cores for the other user.
or give 5 cores for mining and 2 cores for the other user.
right now zec is godlike but I have seen hot coins fall down.
the op should really look into this asap. it may last less then 1 month.