Brawler Archetype "Strangler" Questions and Advice

[Versanus]

While working on a Slayer with the archetype "Stygian", I needed to get the feat Combat Expertise (don't remember why atm. I think it was for Slayer's Feint because garbage Cha) Having 7 int, I considered a dip into Brawler for Brawler's Cunning. The unarmed attack would also meld nicely for what I had in mind for the character as well as emergency Martial Flexibility. I found the archetype for Brawler "Strangler". This archetype also adds a bit of color to my backstory, as well as providing a visual. This character is level 5 with 4 levels in Slayer (backstory demands that that cannot be changed). My questions are:
Do I go with this archetype or stick with just vanilla brawler? Giving up unarmed strike sounds like it removes the ability to deal any real damage as this archetype due to having pitiful damage of d3 nonlethal. Or having a light melee weapon, then suffering a -4 to my cmb.
What if I take the feat Improved Unarmed Strike? Do I get the d6 because he is still a Brawler or just a d3?
I like the idea of stacking sneak attack dice when I have someone pinned, but would it be worth the loss of an unarmed attack? It is also worth noting I intend on playing a semi stealthy character with decent physical stats all around.
Either way, I am going to be taking only two levels into this class, then moving fully into Slayer. Monk levels are out of the question.
Sorry if any info is incomplete or hard to understand. Can't fall asleep so I thought I'd ask these questions.

[Char-Gen addict]

I don't know what you want from the strangler but I'd go classic or snakebite striker when dipping brawler for a slayer.

[Versanus]

Char-Gen addict wrote:

I don't know what you want from the strangler but I'd go classic or snakebite striker when dipping brawler for a slayer.

Snakebite striker would be nice for the more versatile d6 sneak, but the strangler gets 2d6 sneak (+ the slayer d6) when I am grappling and/or pinning someone at 2nd level. Granted that is more situational, but I also don't want to give up Martial Flexibility. Considering I am only dipping two levels, I get more benefit dipping Strangler than Snakebite Striker, but classic Brawler is still an option.

[Secret Wizard]

Do neither.

If you want to feint with a Slayer, get the Achaekek favored combat style and get Improved Two-Weapon Feint at level 6 without any prerequisites.

[Vratix]

Since the Strangler loses the class ability Unarmed Strike, even picking up the IUS feat doesn't fix the damage dice... Until level 5 because Stranglers still get Close Weapon Mastery (which does include unarmed strike) which gives them damage of a level 1 brawler (and that can be fixed with a simple monk's robe).

All in all, I don't think the Strangler is a very good 1 level dip unless you really want to be able to apply sneak damage while grappling.

[ErichAD]

They didn't fix the lack of improved unarmed strike on strangler in the errata? that's just silly.