Wayde,
Luis somewhere refers to this as the Hubl formula and although
I don't know the origin of the term my experience is that
the succinic acid carbro sensitizer described in Keepers of Light
works fine if you don't exceed its capacity, which I find to be
about three 14X19 prints per liter of solution, or an equivalent
number of square inches. For color work, though, I prefer a one-shot
and discard solution like the one recommended by Devin McGraw.
With single solution sensitizers the mating of the sensitizer
carbon tissue with the bromide is the most important step in the
whole process. If not done correctly you will surely not get
good highlights. Some people claim to be able to hand squeegee and
get good results with single solution sensitizers but my experience
is otherwise. In any event, if you are having trouble with the
squeeging operation as evidenced by bald or mottled highlights you
might consider using a two-solution sensitizer until such time as you
can put together some type of mechanical squeegeeing device. If you
need a formula let me know.
Sandy King
Sanking@hubcap.clemson.edu