So I have tried two pools against each other, namely bitp.it and mineco.in
I have three workers (let's call them #1, #2, #3)
On each worker, I started two miners, one for each pool.
This shows that whatever the pool, I get 2% stales on average.
Could this also be because I am on a WiFi? Is there anything (like port forwarding) that could be done to improve this?
I tried Slush as well, same number.