It was a single weight fibre paper that I thought looked very nice. I still have some 11x14 that I haven't cracked open yet but really should. No idea if one can still get the stabilizer and activator. The predominant use was for contact sheets at newspapers afaik. Some used 8x10 paper and some newspapers contacted the entire roll as a single strip. THAT looked pretty cool.
Have you tried adding some benzotriazole to help with the fogging ?