"If you want low to moderate contrast film this is a good answer. The
negatives scan quite well. For very narrow range scenes
other developers may be better. (I use Xtol)
I mix it by table spoon measure. For one liter or quart of each: Start
with 120 degree F distilled water, part A is 1 tsp of Metol, 6 of
Sodium Sulfite, part B is 6 tsp Sodium Sulfite, 1.25 tsp Borax. 5-7
minutes in each bath, no stop in between."
I don't think that hydroquinone is needed. I leave it out simply
because its one less thing to mix and buy. When mixing Part A put in a
pinch of sodium sulfite before the Metol then after the Metol is
dissolved add the rest of the sodium sulfite.
I find that 120 TriX and HP5 are good at 320 in this developer. The
difference between 5 and 7 minutes each bath is very small. I have run
a roll of TriX and a roll of HP5 together for 7 minutes and they were
both quite nice. Again if you want N+ development you may need another
developer.