Yeah sometimes you can show people in black and white and they fail to see through rose colored glasses. On the other had 300:1 testing would off little in the RW of chain saws. If you think it would protect you from being lean your mistaken. Your air/fuel ration would have to be 6 times leaner before you got there and would have hard locked a long time before. That is respective of you adding strait gas to a 50:1 mix. No way a 50:1 mix breaks down to 300:1 because of a lean tune. I guess my point being that I am a bit hard to understand at times is the lack of fuel causes seizure and not the lack of oil when properly mixed and 1000:1 would not protect you.