A few questions about the white splash:
How much better is swords than fire/ice?  F/I kills welders, metalworkers, and shamans just as easilly and can tap and cycle itself.  Granted, it doesn't stop big critters, but, as Milton said, there are factories for that.
Does adding white still allow the sideboarding of bloodmoon?  Fetchlands have neutered bloodmoon a lot, but it might still be a worthwhile hoser card.  If you only run one plains to keep moon available, how often will you be able to find it in time to swords through your phid consistantly?