Wow...so much help with this question is awesome...
After reading what you wrote I wonder if anyone up north by me might have potentially sacrificed one catasetum for experiment to see if a light misting from a spray bottle say, much less say than the light sprays you tried in your climate, but just the lightest mist to not even soak the moss but barely wet it at all?
Do you think this level might be helpful?
I would try it if someone else had and found a benefit to it. Otherwise being its my first catasetum I hate to kill it though experimenting !!!
Whats your thoughts?
Thanks
Mistking
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