So while sources are awesome for dealing out damage, a discussion with the people I play with suggest that I may be better off using a shield now that I'm out of normal. If this wasn't hc, it wouldn't matter at all, but Blizzard's inability to maintain stable servers appears to be the greatest challenge.
So I buy a shield off the AH for a cheap 5k, and another square topaz for 130g (would cost more to socket my current thing) But what's with the interface lying? That can't be a 4% defense difference can it? It's a 32% armor increase and a 8% increase in damage reduction. Where's the 4% coming from? Is it calculating overall damage reduction from resists too?