Free / Swift maneuvers when a given attack hits

[Quandary]

these types of things are seen with Grab, Wolf Trip, White-Hair Witch, and the like.
my question is: does Miss Chance apply to the distinct CMB roll?
i had always thought it DIDN'T since the CMB is kind of a 'rider' on the attack (which already hit/beat the miss-chance),
put recently i've come to think that the RAW really doesn't exempt this 2nd/free CMB roll from miss chance...???
RAI/RAW?

[Tar-Tar]

I think if you go strictly by RAW, those bonus combat maneuvers would technically suffer from the miss chance. I think RAI is that if you hit with the normal part of the attack, the combat maneuvers don't have a miss chance. If a creature has grab and hits you, I don't understand why it would have any extra difficulty closing its fingers (or claws, or hentai-tentacles, or whatever) to start the grapple, assuming it succeeds on the CMB. If you go strictly by RAW, concealment and invisibility essentially give double protection against that stuff. That said, I don't think any GM should go by that.

[Quandary]

yeah, I hit fAQ because I believe that's the intent also, but it's not held up by RAW.