I think I know what you are referring to.
The whole concept of softening a target was a big part of my traditional JJ training where the uke would grab my wrist or lapel and then I would deliver a finger, palm strike, etc. to "loosen" him up a little before flowing into some wristlock takedown or something.
In BJJ however, even the SD tactics are generally structured so that the initial "softening" is not as critical, as the close quarter confrontation that ensued when the uke started resisting, was generally something that the BJJ student was more comfortable with anyway.
I remember at least 100 variations of self defense against a wrist grab from Traditional JJ. In BJJ, you punch him, clinch with him or a combination of both. That's about it.