this is increase the first person skeleton size to match the height of prime. there is two images that shows what it looks like. you will look like you are floating when you look down. it also makes it super harder to pick stuff up and talk with npcs

instead of increasing it just moves the entire body up to give u that float u are in the air in first person. this however gives it that effect of rotating the whole camera when u look up or down. it pushes ur face all backwards or forwards ground or sky