Another PNWer here. One thing about covers, is when the Northeaster is blowing - or any strong winds - they flap and scuff the paint. Make sure it's tied down very well.
Also be very careful when putting it on and taking it off, especially when they are wet. They can be heavy and awkward and if you are working from the roof be very careful you don't get your feet caught up in them lose balance and fall.
Tom and Pris M. along with Buddy the 17 year old Siamese cat
1998 Safari Serengeti 3706, 300HP Cat 3126 Allison 3060, 900 watts of Solar.
Dragging four telescopes around the US in search of dark skies.