I was experimenting with Ilford FP4 Plus this weekend while in the Porkies-a mid speed film that I have not used in many years, preferring how HP5 Plus works so wonderfully in PMK Pyro. I discovered what many posts state about differences between the two films-in particular, that FP4 is more contrasty. So much so, I will only use it on very dull subjects such as some architectural shots that are in flat light. It would be an utter disaster in snow. Fred Picker always advocated learning the exigencies of one film and developer and sticking to it (for him it was the venerable Kodak Tri X in HC110 developer). It appears that HP5 continues to be my go to film, especially in large format.
"Your first 10,000 photographs are your worst."