Vielen Dank, Wolfgang .
glad to see you here on the forum after using your great website so many times in preparation of our trips .
In April (04-20) we are also back in the Southwest. I don't want to disappoint you, but the chance that you can use it in April is rather small because of the windy season in April in the whole region.
Last year we also took the DJI (our first one) with us to The Wave, but flying was impossible due to the very strong winds.
Don't forget to use a gimbal for the GoPro because otherwise you have a lot of instability in the video , see the few video's we could make last April :
above Water Holes Bend/ Water Holes Slot Canyon
above John's Canyon Road
and compare with this last one WITH gimbal : Wild Utah from above