Given a load of 'fast' Fuji Film years ago when the Yellow Advertiser Newspaper went Digital - I had not used some 'Fuji Super HG 1600' from my fridge so I did a test short length from 1000 to 125 ASA and the best result was at 125 ASA ! Film must have been over 30 years old. So I gave my PENTAX KX an outing and set 125 ASA.I processed in the Mini-Lab C41 developer I was given when Brentwood BOOTS lab closed down.