Quote: If it stops my paint around the bung from chipping, it's worth it.
Yep, it should help out there.
Quote: How does it work when filling the tank? Does it help holding back the evaporative boot on the gas nozzle?
That's the only minor issue I've found with it - if you take off your standard cap and look inside you'll see the hole to fill through's actually offset to the bike's left to make room for the breather. When you make the cap smaller but leave it central that offset lower hole doesn't quite match up. I've found I've had to fill the bike from the right hand side, instead of the way I'm used to doing it - from the left.
Evaporative boot? Huh? I don't think aust pumps have them.
