The way I work on my squeeze is to take a medicine ball between my knees, squeeze the hell out of it cross my feet (im short so its not so easy) then while you are squeezing the med ball whip up and over, then back to center extend legs, then whip up to the other side. Keep my hands t-rexed. I whip up and imagine trying to throw the ball across the room with my hips, up and over hard and fast over and over. I think it helps.