I've been getting very lucky drops from Pete the last few days.
Within the last three days, farming maybe 3-4 hours tops each day, I've gotten: a Legendary Siren class mod, a Slippery KerBlaster, a Legendary Commando class mod, a legendary grenade mod I can't remember the name of, and today he dropped an Unending Infinity.
I farm him with Zer0 and I use an Alkaline Bee shield, Sheriff's Badge, and keep him slagged with a Murderous Slagga, then I pop deception and kunai-deathmark him and switch to my shock Fibber x2. Rinse and repeat.
Finally having a bit of better luck with Pete. Was starting to to get tired of him and dropping doo- doo feces. My first rare of my runs the other day was another WTF. Debated switching to another location, but considering Pete seems to like to drop bunches of oranges, I ran another. Then Pete went loot crazy. Venture Hybridification, Sticky Homing Quasar, Sham (better than I had), and a Maximized Logan's Gun in 10 runs. Now, he just needs to cough up an Infinity... <.<
"You think I'm Vicious?! YOU DON'T KNOW WHAT VICIOUS IS!!!!!!!!" Spike Spiegel