or we could not be a knob about it...
address the grips before passing, and if you do start passing when they have the grips in, keep very tight to their hips and do not let them spin. Often times, if they sit through into kesa, it's a lot harder to get.
as far as addressing grips go, make sure you focus mostly on the palm up hand. i find when i'm setting up this choke (which i do a lot of), if i can keep the palm up hand where it should be, it's rather easy to get the palm down hand back in - versus trying to get the palm up hand back in when you're taking away space on that side. (which means if you break the palm up grip, don't switch to kesa, since it gives a little bit more space than a regular side control to fit in that grip).
a lot of people say that the armbar is the best defense, but realistically, if they have good grips, they'll be breaking down your posture so that you can't get the armbar in there properly. i've done this choke before with passing the lapel, using the lapel as a rope grip, and i'm sorry, but if you're in the same weight class as me, my downward row will be stronger than your neck lifts.
tldr: address grips first. if they get grips, do not pass go. if you pass go, switch into kesa, or control the hips.