Delta 3200 shot at EI 3200 is going to have thin shadow density developed in _anything_; you're pushing the flim about one and a half stops.(posted 8611 days ago)Also, some of Ilford's development recommendations have been found by quite a few people to be _way_ off from anywhere near the ballpark.
Delta 3200 imho works best around EI 1600. Try these:
Delta 3200 in DD-X 1:4 11'/75F EI 1600-2000
Delta 3200 in Microphen (straight) 7'/75F EI 1600-2000
Delta 3200 in Microphen (straight) 9'30"/75F EI 3200