I typically run 3/31/7 for PvE. Can't sustain high numbers for 5+ minutes, but is still a large contributor. Has the potential to top out approximately 1700-1800 in sustained fights when mastered and optimized. Is very underwhelming without the gear. Extra survivability from kinetic field, and shadowy veil are nice when paired together with 30% aoe reduction. Can be a very helpful tool in certain boss fights and trash mobs.
I recently tried out a few parses as 5/5/31, once your rotation is down, it's easy to sustain stupid dmg.
Pulled 1924 dps tonight on a 5 minute fight, which is a record for me. (adrenal and stimmed) no armor pen debuffs
http://swtor.askmrrobot.com/combatlog/9516d563-b250-4b17-9fa8-050b35813c76/overview#d=0,b=1
.