Ouch. I would not sacrifice stratum for getwork, so I can have NMC as well I suppose...
You can. Just add NMC address and you will get it. Not much but some. Or look for the pool that have NMC on stratum. When I given up on Slush do to errors I moved to Bitparking. You have NMC, IXC and DEV on stratum. BTC is DGM and others are PPS... It is now about 10% extra...