Stabbing is completely different thing then throwing. It is not only the hand that affects the flight, the object itself will not fly under water that well. For the stabbing hand movement, it is close enough to be realistical. Also the damage. For the throwing hand movement, why does it matter if the animation is not slowed. I hope it is not too annoying, like you said, we are not even trying to make a ultra realistic game. But we want to get rid of the worst bugs. As for the question why other mods allegedly haven't fixed this, we don't know. I don't think you did read carefully. The issue is not only throwing under water, but also that throwing knife or grenade underwater to above the surface. The knife and the grenade will fly just like it was thrown in the air. Only practical use for this is to throw them at beginners. Is this why you want it so much?