I wonder if a jewel design can be THE guaranteed rare from an NV stack? I can remember 2, maybe 3 times killing a champ pack with 5 NV and not getting a rare. Thought it was a glitch at the time (and yes, I checked inventory looking for an accidental pickup)
I always assumed that plans were rolled on the Tome of Secrets drop. I have no evidence for it, though.
The last time I killed an elite and didn't see a guaranteed rare, it was a legendary I had trouble seeing.
You guys are doing it wrong. If you can kill 2 times as fast without MF then you will get a lot more good drops in the long run. But then I make lots of money from selling MF items so I'm not complaining.
Well, if you're over doubling your (magic find + 100) and killing half as fast, that's a net win... It's all about how much you sacrifice and how much you gain.