On Thursday, November 13, 2014 6:19:27 PM UTC-5, Tim Newport-Peace wrote:
Nadler writes
A better option is replace the Volkslogger with a FLARM Core!
Far easier-to-use datalogger, and FLARM!

Depends.

FLARM is approved up to Diamonds only, but Volkslogger is approved up to
World Records.

Assuming anybody still cares about IGC...