Yep, I quickly figured out that putting a Telegizmos (or any other waterproof cover) straight over a wet scope + mount was a bad idea...
Now, if I have to pack up early (clouds, work in the morning, etc) I'll throw a thick towel over the OTA and image train to wipe up some of the dew, and then a second towel loosely over that to help absorb moisture. The cover then goes over that. I make sure there's plenty of space around the bottom of the cover to allow ventilation (i.e. the draw string isn't done up). Seems to work fine - the scope is always completely dry when I uncover it. The towels are hung up during the night to dry out.
Otherwise, if I'm staying at home I'll let the scope & mount dry out with the morning sun before packing up.
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