This is the reason why I had to leave kano's pool.. I would love to come back, but the biggest advantage of Slush pool is that I get an E-Mail as soon as one miner goes below a certain hashrate.

@ Kano
You don't happen to have that feature planned for the future, do you? I know a phone app exists that checks the total hashrate. But the variance of the hashrate gets higher the more miners you have, so you can't recognize a dead miner right away.