So, I was planning on running a bounty hunter(slayer), and saw this ability.
At 6th level, when a bounty hunter attempts a grapple combat maneuver check to deal damage, he can choose to add his sneak attack damage to the grapple damage for that attack. He takes a –5 penalty on the combat maneuver check if he does this. This sneak attack damage is nonlethal damage, unless the bounty hunter is able to deal normal damage with a grapple and chooses to do so. This ability replaces the slayer talent gained at 6th level.
And going through the feats, I found this feat.
Whenever you successfully maintain a grapple and choose to deal damage, you can spend a swift action to deal your sneak attack damage to the creature you are grappling.
So, does this mean on a successful grapple check, including the -5 penalty, I can apply my sneak attack damage twice?
Sounds fair.
But you should realistically be dealing four times nonlethal sneak attack damage because you are taking the Sap Adept and Sap Master feats, right?
Yes, that works. This is not one of those situations where you are doubling up though. It requires an available swift action to do the second SA damage. You deal your SA damage with a successful grappple check -5 as part of the submission hold. If you succeed you then deal SA damage as a swift action with strangler. I can't see any difficulties.
Making sure.
@Secret Wizard: Yeah. Also, I'm going for pinning knockout.
While you have an opponent pinned, when you succeed at a grapple combat maneuver check to deal an opponent nonlethal damage using an unarmed strike or a light or one-handed weapon, double your damage result. Any creature that is immune to critical hits is immune to the effects of this feat.
Have to take IAS, Imp. Grapple and Grtr. Grapple, but the non lethality would be devastating. Was also planning on going 10 Bounty Hunter/10 Strangler(Brawler). Same amount of sneak attack as maxed bounty hunter, maneuver training will give me an extra +2 to grapple, three feats from martial flexiblity, two more instant KO attempts and no penalties for the grappled or pinned conditions.
There is a feat called Bushwhack.
Also you probably want Surprise Manoeuvre to go with that.
I was planning on surprise maneuvers too. Thanks for pointing out Bushwack, though. Read it before, but completely slipped my mind.