Sounds like you’re getting a little riled but that’s cool, I have pretty thick skin. I didn’t ask about one deflector verses two, but about left verses right. I have one on the right thinking I would shield my thigh from the exhaust. After I read your post I considered maybe pulling in possibly cooler air from the left may better cool the cylinder. That’s why I asked if you had compared sides. I’m not sure what you were referring to about compressing liquid but if you meant that pulling air from both sides would create positive pressure behind the rear cylinder, then I concur.