Ray,
Another vote for a dome in a windy location. My dome is very exposed to the gusty NW winds and has withstood well over 100 kph. I installed a good dozen safety hooks which are 'engaged' 24/7 to retain the dome.
I don't use the dome in anything above about 25 kph wind since the open shutter is not that secure. For normal observing though, the lower hinged shutter is closed, so the scope is well protected from both wind and LP.
My scope has a FL > 3500 mm and combined with a solid (AP) mount, the wind is not an issue. Further details at
http://www.iceinspace.com.au/forum/s...ad.php?t=36222
Cheers,
Chris