We master to tape, not to a file that pretends to be tape. Every run goes through a calibrated Nakamichi deck, a tube stage, and a pair of ears that have heard too many bad transfers.
Started with a thrifted Walkman, moved to a four-track, did live sound for years, ran a small label, mastered 120+ runs for Low Tide and Dust Choir, and still set bias by ear before trusting the meter.