By the way, my improvements were to purchase a Yankee Darkroom Safelight: http://www.bhphotovideo.com/c/produc...Safelight.html
and I used a 3.5 contrast filter.
With the third one I thought I would wing it and not do a test strip before printing it - not thinking that I had raised the enlarger which would decrease the light hitting the paper. I'll get it right next time...
Do you do a test strip before printing each new negative?