i keep my OTA's inside, but my EQ6 outside, so i dont have to keep polar aligning it.
i have a huge cotton sheet, folded over from corner to corner to make a massive triangle, then i tie this around the mount head, making sure the actually mount is covered. I then put a have duty black bin bag over this, and tie this up tight around the large spreader bolt, so teh cotton is above that, ie. the mount itself isnt exposed to the fresh air, then on top of that, i put a heavy see through bag, for protection on top of that, then ontop of that i put a light weight see through tarp, that has been tied in a knot at the top to produce a kinda "bag" this then goes over the top of the EQ6, and reaches right down to the ground.
This seems to protect it well, and i have never had any issues.
