The top one isn't the easiest to get at. When I got my partners 04 S-Wing I stripped it and was surprised how good it was so I sprayed everything in Waxoil and its been fine ever since. I only got my Silverwing a short while ago and haven't had time to do the same yet, but at easter i have 2 weeks off so thats one of my jobs. My partners previous scooter was a Pantheon that came with very low mileage from Arbroath and was I found out later was parked on the sea front, now that was a rust heap under the plastics. I guess it all depends on where it is kept and if it gets washed down regularly.
Looks like I'm headed up your way tonight for my grand daughters party on the outskirts of Liverpool.