O.K. www.digitaltruth.com did not list this combination. Unless John Hicks will come up with a time, my guess whould be 16 mins at 20°C. Roughly the time for HP5+ at 3200, which has a similar time for 400 compared to TMY. My own experience is limited to TMY at 1600, usually in Tmax developer or two bath developer. (Don't worry I shoot HP5+/New Delta 400 at 1600 all evening yesterday)(posted 8493 days ago)Regards,
Wolfram