Quote Originally Posted by sanking

Do you know if the dichromate method of contrast control can also be used with ammonium and/or sodium citrate developers?

Yes it can Sandy. I tried it and it work just fine, but I have to say I preffer the tonality and "glow" that PO gives, plus I like the extra speed.

I also tried mixing PO and SC to give a cooler image with the greater speed of PO, this works very good to control slight contrast changes, specially in the middle tones, but since I did not get much speed gain I just decided to stick with PO.