I've started working through Tiny Tina's DLC just to get the key farms ready for when I hit level 72. I'm slowly working my way to the point in the DLC where I can farm the magic missile grenade mod and I have the Bee farm already opened up. I might try for a bee when I hit level 63, just to speed levelling up a bit.
Clearing my way to the final two treants on the other side of the Orc camp, I encountered The Duke of Ork, who proceeded to give me a kicking. His level was obscenely high compared to mine, which probably explains why I couldn't hurt him. Will have to take a screenie if I encounter him again.
Another thing that struck me is that Tiny Tina's DLC is really, REALLY, generous with ammo chests. Which is handy because my Lyuda's go through a lot of ammo.