Don't know about the chrome, but I'd shoot the FP4. I recently "found" 10 rolls of FP4 in my storage shed. I don't remember how it got there, but I remember buying it about ten years ago while in Seattle WA. Receipt still in the bag. It was dated Sept. 1997. It spent ten Idaho winters (-20 deg) and ten summers (85-105 deg) in that storage shed, and after shooting it, I couldn't tell the difference between it and new stuff. It's tough stuff!

Dean