I used some photolinen a few years ago, it processes just the same as regular photographic paper although it does have a tendancy to curl into a tube while in the developer if you allow it to. I had to hold it flat at the same time as I rocked the tray. I developed it in Dektol and Agfa Neutol Warm and the print had quite a pleasant warm tone when dry. It is about grade 2 to 2.5 in contrast. I cannot remember which safelight is suggested but I have 4 10 x 8 Ilford 902 safelights in my darkroom and had no problems with fogging. There should be a note about safelights on the information sheet.