NFHS _ Release Stunts/Tosses: 3-5-1; 3-5-2; 3-5-3
This is only different from the last one in that they begin in a prep instead of an extension before going to the loading position. None of that matters. The toss rule begins when they go to the load and then perform a “ release stunt in which the base(s) begin underneath the top person’s foot/feet and execute a throwing motion from below shoulder level to increase the height of the top person. The top person becomes free from all bases, spotters, posts or bracers.”
It is illegal.