I'm not trying to keep any secrets. I just didn't know if anyone else had shared already.
God I hope I don't sound like a tool explaining this shit. Okay, so the traditional way of shrimping is getting on your hip, both arms out framing against the guy and the hips go out to the side to make space. So the "new" way is similar except instead of using both arms to frame, only the top arm extends to push against the opponent. The bottom arm stays close to the body and guards the neck. Your chest should be almost side ways. From here it's really easy to come to the knees or replace the guard.
The key detail is really hiding the bottom arm. It keeps the guard passer from pulling up on it which negates any space the guard player tries to make.
So anyway, I'm not sure if this was clear at all. Hopefully a video leaks soon.