I used a Sonotrim mike under clothing
Once in the air the presenter used a selfie stick and a GoPro to do pieces of the commercial to camera.
He then stopped talking to enjoy the "flight" and I got a wonderful altitude track.
I eventually un-rigged him in the car park below
Me jump!!! Xugger that!
Radio mike range was pretty good as the guy was in clear air
But the pieces to camera , out of radio range were captured on the recorder
Now days I would use a Sony Recorder to flash drive.
Small inexpensive and 24K 64 bit
This unit has been round the world on low cost commercials without budget for me.
I have wired a Sonotrim to plug into it and it is spotless!