Leveled Zevran up to 12! He now has 29 points in cunning (21 base, plus 7 from items: Pearl of the Anointed +1, Guildmaster's Belt +3, Dusk Ring +3) and is halfway through the lockpicking tree. Using this guide [1], Zevran's lockpicking score is 39. Using the same guide, I only need to put his next two skill points into the lockpicking tree, and one more cunning attribute, and he should be able to pick all the locks in the game. Of course, that need is a big one - I plan on getting the Tome of Ethereal Suggestion to shorten that process.