Paul
I'm guessing IPA is isopropyl alcohol, which is precisely what I said I'd be using to clean the corrector, and which is contained in the lens cleaning fluid I initally used.
I don't think it was pure enough alcohol, though - hence the streaking.
I never re-used the same cleaning tissue.
The Bintel UHTC cleaning solution I've ordered is the precise recipe laid out by some astro "Dr" bloke in the U-S whose recipe everyone swears by.
Also, as stated in the original post, there fortunately do not appear to be any scratches.
I dunno, but I reckon all bases are covered there, and you and I are on the same page?
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