Appreciate all of your comments, the bike is in an open carport with top. Just needing a quality cover for blowing rain etc.. Hopefully it won't be covered for any long time though. The Nelson Rigg does have vents though too. I took the trunk off and left the bags and now to see if a XXL cover with be too big on go with a XL //humm ?? From ground to top of F4 windshield is about 60 inches and length about 114 inches.
Thank you again
Ken
My Interstate with trunk off permanently has been covered by an XL (or XXL), and it fits fine, though there is some extra in back you pull up to keep off the ground.
Under a carport, the full size will keep more dust off, but a half will do for wet.
Unrelated to the cover, I recommend no bicycles be allowed within 20 feet of the carport.

(My experience is, if it's at all possible for a bicycle to hit your bike, it will eventually hit your bike.) (or car)