100% of the time.

Ditto. Used it yesterday when above 10,000. When cleared to 15,000 w/ a
70kt tailwind, I went without worry.

And FWIW, I'd rather use it often and find the oximeter isn't working when
it isn't critical then get it repaired.
--

Thx, {|;-)

Victor J. (Jim) Osborne, Jr.

"Ken Reed" wrote in message
...
I'd be curious to see how many pilots use the oximeter while
using oxygen.

100% of the time.
---
Ken Reed
N960CM