Pshh. I've popped one off at 1am after a marathon build. My neighbors have never complained. At least not to me. But to be fair my closest neighbor likes to get at it at 7am, or earlier on the mower, he's 80+. I have one neighbor that is in her 60's, her ex husband was a logger, and she's the youngest of the "next door" neighbors I have. The old lady across the street is the widow of an old dude who did small engine repair his whole life and the 73 year old man up the hill cuts firewood for money. I live in a special place. Kid down the street likes to plow his little 4 acre field at 2am. I swear he gets home drunk sometimes and his first thought is to get some with the tractor. We are all in the city limits.
I'm just curious, ethanol is a octane booster. I've always assumed that they skimp on anti-nock additives when they make e10. Do you have any problems with removing the ethanol and having detonation? I always buy non ethanol for me 2t stuff so I have no experience removing it.