Our main reason for electing to re-wash M3 was an extremely thin line of squiz we found at the outer edge of the coating. Some of this material dissolved during yesterday's wash & caused mild streaking at the very edge of the mirror. Although far outside M3's clear aperture, we decided it would be best to remove this if at all possible.
A small area was successfully tested with a cotton swab before proceeding to clean the whole edge with sodium lauryl sulphate.
The offending substance was carefully removed & then the edge of the mirror was drag-wiped.
Yesterday's cleaning process was then repeated - the radial drag-wiping, rinsing with distilled water & finally blow drying. Afterwards, the lights were switched off & the mirror inspected with a flashlight...
The result was Superb! :)
After the inspection & photo-shoot, M3's cover was replaced & the mirror lifted to allow it to be dried thoroughly.
At that stage it could be lowered back into its box...
& the team could breathe a huge sigh of relief :) Great job guys!!