lol i only got 2 db drops ... my first when i was noob lvl110 archer at snakes in ac 2 , then the other before rebirth on lvl130 :P ..
first : there is not algoritme in db drops they are just random the 2 times i got it was just that i was jumping there and scattering , i wasn't even hunting

now i'm warrior lvl110 and i suck

so i can't hunt now xD