Delta 3200 has a true speed of 1000 (in ID-11) and Kodak Tmax P3200 of 800 (in D-76), if my memory is good. I am not sure about Fuji Neopan 1600... I prefer the results of Ilford HP5 + pushed at 800- 1600 and developed in a well chosen chemical... Try the Tetenal Emofin Two-Bath developer, after a few trials I think you will get unexpected results...(posted 8417 days ago)