What an interesting thread!
I too dislike altitude in helis. Possibly because of a rational fear of Cessna enemas instilled by my teachers, bless 'em.
Doors off, well sort of alright. But very high in a heli is not my very favorite feeling, particularly if it's a CAVU day.
Possibly it's the changed horizon cue that's disturbing. Curved and lower than usual sort of thing.
Then again if the weather is less than perfect I'm perfectly comfy.
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