Hey, I've been thinking about that spot and may try it sometime.
Personally, I think the polarizer you used was a bit too much as it seem to darken the sky far too much like a ink blot with P4's wide angle lens in video. My sky video panos look pretty bad with the polarizer so I leave it off now and use a grad. Color on my monitor looked a bit greenish too.
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I've shot stills there, but no drone work yet. Would be a good place to try autonomous apps too if the wind is agreeable as it gets pretty gusty in the afternoon. Most I've seen is a couple of cars at a time there, and the ranger twice who just waves from his pickup in the summertime when it's too hot to get out of it.
well circular polarizer is not a good suit for a wide angle lens. ND Grads are always a better fit.