I have extended the breather pipe of my 2010 G5 Deluxe up over the rear fender, & ended it right at the lower rear edge of the fender. I have noticed it has nocturnal emissions from this tube & keep a pie plate under it in the garage. When I got the bike there was oil in the breather box & in the air filter. I plugged the hole in my air box & used a long hose for the breather,old school style. Although blowing out is oil annoying, it is no more annoying than my many attempts to get my oil level correct, which I suspect to be the cause of the emissions. It is the only aspect of the EFI engine that I give poor marks. It should have been designed to have a definite visible correct oil level in its sump when at rest-like others, Ducati, BMW, etc. At least excess oil has an escape route, & none gets on my tire or air filter.