Borderlands 2

Tumbaa never seems to spawn, I get him ever once out of 5 times if I'm lucky, is there an easier way to do this?
Where are the exact locations that he spawns in?
---
"Talk about sidestepping a pot hole only to fall off a bridge"

If i remember correctly, it's easier to have a wildlife preserve mission available (i used the "collect slag samples" one)

make sure you don't finish the quest tho

now go to the wildlife preserve to see if tumba spawned. if he did, kill that guy.

if he doesnt drop the deliverance, save and quit then come back in

repeat this until you get the level / element you want
---
http://steamcommunity.com/profiles/76561197965186478
tf2 backpack : http://tf2b.com/?id=76561197965186478