Hello,

I learned about a mini variometer that purports to have zero time lag. It is called the XC Tracer (https://www.xctracer.com/en/tech-spe...=1861&lang=en). There are versions with FLARM, igc loggers and is solar powered. It is aimed at the hang gliding market. Has anyone used on in a sailplane? If so, how did it perform? Could you recommend it?

Thanks,

D