[LAW (Murphy)]

I searched but I couldn't find a definitive answer on solar filtration.
I'd like to image the eclipse in a few weeks but I'm not sure if the piece of solar film which is currently sticky-taped to the end cap of my 8" newt is in good enough condition (and I'm not willing to 'look and see').

So the safest option is to replace it, the options seem to be black polymer, mylar film or a pre-made filter of either. What are the advantages/disadvantages? Pre-made or film?

Thoughts? Comments? Queries?

Thanks