I polish the film exactly as I polish the car...I'm using the free car polish that was in the Thrill on the Hill goodie bag a couple of years ago, backed up by Maguires Detail Spray after each wash.
IF you have dull areas on the film, especially on the running board edge, caused by scuffing, it can be polished by using a polish designed for vinyl windows on boat canopies. Most marine chandlers have it in stock. It also polishes the rear window rather nicely!
But 200 miles since October...oh dear. More enjoyment is needed, perhaps some "Morgan Use Training" is required.
I've run almost 2000 miles in the same period and 10,000 since getting the Plus 8 in December 2014. Now have 25,300 on the odometer.
My plan is to be the first Plus 8 to 100,000 miles....

Is that Aero Abuse?