Hello Peter
I have used a liquid polymer (
https://www.photoniccleaning.com/ ) from <<< on my Edge 1100. it had some some light marks ( fingers?? 8-( )
The product is a liquid that is moved around over the glass - or lens and allowed to dry, a lift-off tab is set into the liquid and is used to lift off the dried film.
All the " stuff " on the mirror was / is lifted off. It is a bit nerve wracking to put the liquid on the glass but the results were well worth it.
https://www.youtube.com/watch?v=v_meK7cfs6U
Ed