This is what I use for pvp tanking ( good survival, good dmg burst, no heat issues, high mobility)
priorities for this one bodyguard, healer smasher and interupter , also makes good combo with pyro powertech when defending
http://db.darthhater.com/skill_calc/bounty_hunter/powertech/#::fefef2e2f12e4f2e12fef18:
I use it with dps/tank gear (tank 4 set bonus) so I can use Ion Gas cylinder not High Energy one