I have a question about some down air moves. Like the down air of Zero Suit Samus and Sonic! When you use them you fall really quickly. It will be your death if you use it above the abyss! But sometimes when i use their down air they do not fall quickly but fall normally instead... What event triggers the slower falling in these down air moves? It might be handy to know because sometimes i am thinking "Yes now i can hit him with my down air" and end up not falling fast which makes me lose a stock!