Why use potassium dichromate at all if you are attempting to build a negative with a DR to match the process?
Originally Posted by philsweeney
As for even coating of the paper, what paper are you using and how are you coating it? Also what is the relative humidity of your coating environment?
A textured paper surface requires more sensitizer than hot press paper.
One thing that may help with even coating is to add a couple of drops of grain alcohol to the sensitizer for an 8x10 size print.