For what it's worth (and maybe not much), I find Azo grade 2 to be very contrasty. Although it's a graded paper, perhaps it is in part a function of my VC coldlight head. In any case, I use Z VI developer (my standard) at twice the dilution (i.e. 1:6 rather than 1:3) to get "normal" results.

I've never tried Azo grade 1, but if the grade 2 is so constrasty, perhaps the grade 1 would be more like what I think of as "normal contrast".

Paul