I took a break from shooting with my hassy for a couple years and now want to get back at it. I always shoot 100 speed B&W film, and I was using Fuji FB-100b to take test shots. In my absence I see fuji stopped making that film. I see there is a 3200 iso option still available but not sure that is really practical for me in the field. I'm guessing there are people out there with a similar need as mine, can you tell me what people are using as a replacement for the fuji instant 100?