I had a great day Sunday printing pyro negatives on Azo #2. I wasn't able to do any burning, and only a little dodging, because of my light setup, but I didn't need much anyway! This truly is a wonderful paper. No test strips were needed af ter I became accustomed to the bright lighting. I used Edwal ultra black and I r eally liked the cold bluish tint, but when I toned in 5:1 selenium that was repl aced in 2 minutes by a purplish tint. How can I tone with selenium and keep the cold tones on Azo? If I went to 20:1 dilution would that keep most of the origin al appearance?