Let's say I want a lvl 50 Infinity. I wait until I beat the storyline in True Vault Hunter Mode, then start the quest from Zed. Dr. Mercy should be in the level 50 range. Will he always be around level 50 when he respawns(and have level 50 drops), or reset after the quest is complete to some lower level? Meaning I've only got one chance at the drop I want without alt+f4ing?
However, when in 2.5, loot can range from 48 - 50, so you won't be guaranteed to get a level 50 Infinity. When I was farming for the Nukem and Veruc, I got two level 48 Verucs before getting a level 50, and I got a level 50 Nukem prior to getting a level 49.
Alright, that's the main thing I wanted to know. I read somewhere that mobs will de-level after the sidequest is completed if you waited until the end of the game, but I didn't know if that applied to unique mobs as well. Thanks!