Multiple varios
"Getting home" may well be possible if your only vario fails. Continuing to race if it fails in a contest is a lot more difficult. It's happened to me at least twice. I don't like single points of failure. The battery, battery selector switch, etc., can be one. The ubiquitous triple probe can be another another.
And, yes, the two varios do sometimes provide different insights.
Chip Bearden
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