My stales went up about 0.5% overnight, otherwise no problems pointing to btcguild.com (not a specific server).  I moved to another pool temporarily only to lighten the load which might help others who are having difficulty or not actively attending their mining.  I'll switch back when the dust settles, even though it was working pretty well for me.  I think people should consider avoiding mining from specific servers if at all possible and just use the load balanced btcguild.com address.