I dont use the gs this weather as the metal tube starts sweating nearly straight away.
The fibreglass tube on the Parks copes much better.
The dewheater on the Telrad works great(thanks Laurie).
No finderscope, so no problem there.
I leave the fan running to extend the viewing time, keeps the dew off the mirrors for awhile.
I call it quits at the first sign of dew on the secondary.
And I have a hand towel to keep my hands dry.
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