Hey that's a good idea, but I don't think I can do that in my rig,

I've got a strange experience using zm after running 15 hours give or take, I received an e-mail from flypool, said that my miner was offline. Then I checked my rig, Internet connection ok, zm still running and mining but not sending any shares to the pool (only reporting my hashrate, temp, etc) therefore the pool sent an e-mail.

I tried to close the miner and restart it again, everything going back to normal. Now I have to set my batch file to auto restart zm every 12 hours, been running good for about a week. I tried to make a loop like you suggested but it didn't work, the miner didn't auto restarted like it used to be, it just opened new cmd window with the new backup pool address but not mining because the gpus somewhat still minning in the first cmd.