What a concidence, I have just ordered a couple of neodymium magnets for that very purpose. I have made a couple of sidescreens out of 5mm polycarbonate sheet for my '61 +4. If the experiment works I plan to post a few pics.

I am having difficulty remembering how to reduce a 1.2mb jpeg in order to post.

I have posted three pics of screens in the 'Classic Morgan' category of TM's gallery thing ( sorry can't remember proper name, it's an age thing).

Nev.