How can I prevent an algorithm from being used on a specific profit switching pool? 

Using Profit Switcher with a number of pools (MPH, Nicehash, etc..).  When AM believes dual mining with Keccak is most profitable it starts dual mining on MPH.  Unfortunately MPH continues to get a socket timeout every now and then with Keccak.  Dual mining on Nicehash with Keccak works just fine.

Thus:
- If on MPH I don't want dual mining with Keccak (SHA-3)
- If on Nicehash, dual mining with Keccak (SHA-3) allowed

I know I can turn off SHA-3 completely, turn it off at the video card (profile) level and even turn SHA-3 off for a specific miner... but how to do it at the pool level?

Thanks!