You sold your ETX and it would have been a better scope.
The fork was dead, but I still have the OTA. The corrector has fungus and I've cleaned it with alcohol, lens cleaner, etc. to no prevail.
get a little polishing compound. cleans fungus like a dream.
I would think that be murder on the glass.
I was about to say the same thing. Changing the figure of the corrector doesn't seem like a good idea.