I rate Porta VC and Fuji Astia at 100. I would like to rate a B&W film at 100 also. But, I have not found an emulsion that rates at 100. I shoot TMX at 50. Has anyone done test with film and developer combinations that rates an emulsion at 100?
I shoot FP-4 and Plus-X at 100. PMK Pyro for the FP-4 and D-76 1:1 for the Plus-X. APX 100 at 100 in R-76 1:1. Verichrome Pan at 100 in D-76 1:1. You can pretty much rate B&W film however you want. You just have to adjust your metering and development times to make it work for you. That takes testing. Nobody's opinion will take it's place, I'm afraid.