Training locations

Level 31-33: Training will not be slow compare to pure bandits since SinDits use Lucky 7 to atk. Equip a Meba+7 or you can just make it yourself and scroll it with better scrolls. Train at Ant Tunnel 1 and pray to the Maple God that a Nakanami drop. Or if you want to have money go to kill green mushrooms if a pan lid drops you're lucky.

Level 34-37: Since your Savage Blow is completely weak till level 37 stay at wild boars and bear it for a while. It’s still a good thing because it has a decent drop and exp till level 37. Don't go for ludi pq for now.

Level 38-50: Now you can equip your daggers and better clothes, and go to ludi pq where all sindits are needed for their range and atk. PQ will be extremely slow about at level 41 till 50 still you have good items.

Level 50-70: From this part training as a sindit is now feels likehttp://strategywiki.org/wiki/MapleStory/Thief_Guide