Say a person has been flying IL-2 all of the 10 years it's been out. He's an epileptic and so far he hasn't had much trouble. All of a sudden he buys the sim he's been waiting for for six years. He gets it out and starts flying. Next thing he knows he finds himself on the floor a half hour later just waking up with muscles that ache. His inner cheek, tougue and lips might be chewed all to hell. His legs and arms might be bashed up also because of the grand mal seizure he's just had. This person would deffenetly need that filter. I think they need a switcher. This video has no filter I'm sure of it. It's almost two years old. Look how smooth it is.