Dirty Deeds reduces Cheap Shot's Energy consumption by 10 per rank. (2 Ranks)
Initiative grants Cheap Shot a 33% chance per rank to add an additional Combo point. (3 ranks)
Master of Subtlety increases the damage of the opener and all attacks within 6 seconds by 4%, 7%, 10%. While this does not directly affect Cheap Shot, it allows you to capitalize upon the stun to a greater extent.
Tips and tactics
Cheap Shot is seen as a crucial Stun Lock ability in many talent builds. Using Vanish makes it possible to use Cheap Shot twice in one combat.
To get full use after vanishing, make sure you Cheap Shot as soon as possible since your opponent will see you if you are still in point blank range, note this is possible even with periodic damage if timed correctly.