I can see ammo preferences/dislikes in my 9mms, but I wouldn't call them fussy. The ones that tend to shoot well, tend shoot well with most any decent ammo. The ones that won't shoot bragging groups don't seem to have a favorite brand that will make them shine.
Here's a ten shot 2" group I shot at 15 yards with one of my 9mms using 6 different kinds of ammo in one magazine. None of it what you would call premium ammo...
