I too am under the impression that OP's "I was in deco" is an artifact of macdive/subsurface's display, not the actual DC reading.
I've no idea whether Garmin includes calculated NDLs in its logs and iDive may know how to read that information, but from a programmer's standpoint: why bother? You can always recompute from the logged time/pressure points.
I've no idea whether Garmin includes calculated NDLs in its logs and iDive may know how to read that information, but from a programmer's standpoint: why bother? You can always recompute from the logged time/pressure points.