heres my krieg that ive been using.
the build
http://bl2skills.com/psycho.html#55000210000000550105153141551141051
i feel that the extra points into fire fiend help tighten the spread of my kitten/ravager shots.
gear:
slagga
fire/corrosive kitten
rock ravager
seeker
rough rider
legendary torch
explosive relic
chain lightning