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This may be at the extreme end of the spectrum of being a nervous Nellie, but with any kind of cover, do be careful of the sail effect in strong winds. I read an account on sci.astro.amateur of someone’s Takahashi NJP mount actually being toppled by strong winds, damaging his DEC shaft. The NJP is heavier that a G-11 for comparison.
He did not have his OTA on the mount and in the thread, a bright spark worked out the wind loading on the surface area required to topple the mount and it came in at over 80 mph (or 128 kph).
Cheers
Dennis
PS - My observing hutch once blew over at the Qld Astrofest, so I peg the legs now to avoid a repeat.
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