I actually use stand development with rodinal 1+100 for one hours at 21C.
It's great with film 100iso like fp4.
It's seem to be more difficult with 400iso.
For exemple with neopan 400 I have strange white forms on the side of the film.
I think I'll try HP5 and T-max 400.
Do you think it's a good choice ?
Thanks and sorry for my poor english.